With the same Search Pattern, the Matched Text can be different on different finds. OR always expands your search. Construct your query containing 20 or more terms, and OR them together. In addition, any sub pattern within the Search Pattern parenthesized using the Referencing Parentheses, would be designated as a category creating pattern. 3A-3B are diagrams of an example Boolean space expressed as a torus. Such a high level programming tool is a very valuable invention for use in taxonomy because of the ease with which changes can be made in the categorizing Search Patterns. The Nisus Writer Regular Expression (using the notation defined here, with the additional operator “|” meaning “OR”) that works very well is the following: \<(:u\.|:d+\.:d*|:d*\. Assigned to WESTINGHOUSE AIR BRAKE COMPANY, KELSAN TECHNOLOGIES CORP. This number is not assigned by the USPTO and can be any combination of numbers and letters. Copy and paste each one as-is, or edit to fit your search needs..Net Developer.Net AND (VS OR “Visual Studio”) AND (VB OR “Visual Basic” OR VB.net) AND (ASP OR ASP.net) AND (C# OR C#.net ) AND “SQL Server” Android Developer Search and read the full text of patents from around the world with Google Patents, and find prior art in our index of non-patent literature. This search engine allows you to search the USPTO's database of registered trademarks and prior pending applications to find marks that may prevent registration due to a likelihood of confusion refusal. Boolean Operators are represented by the following words (though special symbols may be used instead of these words in the software implementation): AND, OR, NOT, NEAR, FOLLOWED BY, NOT FOLLOWED BY. Expressions are evaluated, as usual, from the innermost to the outermost parentheses, and from left to right. Oct 25, 1999. Classification search in Espacenet helps you to find suitable classification symbols for your search, and then to apply in the search itself. You already know Boolean logic, right? Kelsan Lubricants Ltd., Exerpt from The Evaluation of Century Oil Lubrication Products, Association of American Railroads, Jul. My favorite topic is a discussion about keyword searching using the Boolean OR operator. Newly Added Patents. Shorthand: :n, (xii) 0-9 This is any digit. Patent Structured Search. Advanced search engines allow a full “logical” or boolean search, by which is meant that words or phrases can be combined using the boolean operators “AND”, “OR”, “NOT”, and NEAR. The following step-by-step process describes the construction of the Pre-Processor. At that point the right operand is B which excludes the last closing parenthesis, if present, when condition (c) is satisfied, and excludes any boolean operator which caused condition (b) to be satisfied. The common syntax errors are the following: (a) Unmatched parentheses. It is in fact a conditional AND. The following steps identify the operator (Op) and operands (A,B). The meaning of NEAR is optionally modifiable by the user. Owner name: Identify one with the highest precedence and store it in Op. In addition, the invention adds several more boolean search features (such as the user definable NEAR, the FOLLOWED BY, and the NOT FOLLOWED BY binary operators) and extends further some of the already extended Regular Expression features from PowerFind Pro of Nisus Writer. Such a set of boolean operator features gives the user greater control of the text being searched. Example Boolean Search … Then each word of the text being searched would then be similarly hashed and the result compared to each of the hashes of the words in the list. We make every effort to prevent errors and discrepancies in the … The straight forward combination of a Regular Expression search engine and an extended Boolean search engine results in two types of OR and two types of parentheses: one used in GREP expressions and one used in Boolean expressions. 1. Using the Boolean Search Page to search for an attorney named John E. Doe, you should enter Doe-John-E in the Term 1 text entry box and select the Applicant Name field from the drop-down menu. Contact us; LOGIN. For the latest updates of the database, see the Currency of information page The user can then name each such list and save any number of such lists for later recall and use. Boolean Expressions often need the definition of the “Search Target.” In current search engines on the Internet, the Search Target is implicitly the whole document, or web page and the user has no ability to control that. This is, of course, a ridiculous extreme, but it illustrates my main point: There is no possible way you can give complete coverage to a search on a topic using the Boolean AND operator. Shorthand: :(, (xlii) } The right closing NR Parenthesis. Candidates who match the exact skills, experience and education required for a position you are looking to fill, live in a commutable … }:) This is essentially Any Character or paragraph break, repeteated any number of times, longest match. The user defines a set of simple or complex Search Patterns for each pre-defined category. Use the Boolean OR, particularly with a large set of terms that are likely found, but not necessarily found in every relevant document. For example, a Boolean search could be “hotel” AND “New York”. As a result, I dish out lots of advice on how to solve specific search problems. Each expression is a string of symbols and the plus sign designates string concatenation. Using the Manual Search Page, to search for an applicant named John E. Doe, … AB It is important to note that not all search engines will recognize all Boolean Search Operators. LookAhead™ Example: Not a fully functional page nor endorsed by USPTO.gov. LinkedIn Help - Using Boolean Search on LinkedIn - Due to high support volume, it may take longer than usual to hear back from our Support Agents. The Search Target, is that sub-text element which is to be searched through for an instance of the Search Pattern. Search and read the full text of patents from around the world with Google Patents, and find prior art in our index of non-patent literature. If the parentheses sum is non-zero when the scan completes, likewise report an unmatched parenthesis error. The second alternative speed-up process would use a simple hashing function to reduce each of the listed words to say a 16 bit number. Shorthand: :−, (xxxiii) n Times Means the preceding character, wild card or parenthesized expression is to be occurs exactly “n” times. ABOUT THIS GUIDE The PATENTSCOPE search … A few techniques consistently resonate with our clients and almost always generate the proverbial “Ah ha!” moment. :*A:) A method of searching text data, in a computer system, including means for specifying a text pattern to be matched to said text data, within a search target said means comprising a language used to compose a search expression describing said text pattern, said language comprising regular expressions and a plurality of boolean operators, said method further comprising user means to specify said search expression, further including methods of an optimized search for said text pattern when said text pattern consists of a boolean search comprising a plurality of text strings disjunctively connected with the OR boolean operator between each pair of said strings, said methods comprising the steps of: i) combining the strings into a single efficient regular expression; ii) carrying out the search using the combined efficient regular expression; iii) once a match is found, checking through the original list, if necessary, to confirm or deny the match. (xvii) Negation of Pattern () % {!}. After a little practice, you’ll learn to love the Boolean OR and the millions of results it returns! :(A:. Shorthand: −, (xxxii) 0 or 1 (shortest) This is the same occurrence designator as the previous one except that the match uses the shortest possible number of occurrence. :(A :w{,n} B Or B :w{,n} A:) ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). The other symbols stand for the Extended Regular Expression whose meanings are listed in the previous section. Try the beta replacement for EFS-Web, Private PAIR and Public PAIR. Find news, publications, notices, practice notices or other general information. For example, when we are searching for documents containing the words “search engines” typing these into the simple AltaVista search engine finds over 680,000 documents! Patent Buddy offers a free search of patents, inventors and current patent owners. It is likely that only the first hundred or so documents will be truly relevant. When searching for specific numbers in the Patent Number field, utility patent numbers are entered as one to eight numbers in length, excluding commas … Don’t forget, as technology evolves, and the lexicon changes, you’ll have to update your search to include the newer terms. A method of searching text data in a computer system, the method comprising: a) constructing a plurality of regular expression (RE) terms, each RE term using a plurality of different nonliteral RE symbols to describe a class of text patterns; b) modifying the plurality of RE terms by a plurality of different Boolean operators to form a Boolean RE search pattern; and. Shorthand: . SumoBrain lets you search for patents either by entering information into different fields or by conducting a Boolean search. A reconfigurable digital optical lookup table for solving Boolean equations sing an array of bistable optical devices is provided. Our improvement will help those of you who know your search criteria in one of Canada's official … Below are search string examples sorted by job title. Shorthand: (, (xl) ) The right closing Reference Creating parenthesis. Shorthand: :a, (xi) A-Z a-z 0-9 This means any alphanumeric. Mixed expressions have to be parsed twice: once by the Regular Expression Parser the second time by the Boolean parser. For example, suppose the Search Pattern is defined by: where each “:w” stands for any character which can be part of a word, and “\<” stands for the beginning of a word, and “\>” for the end of a word (each of which is not a character just a position) then the example text pattern represents any four letter word. Shorthand: \r, (xxii) New Line The new line character which does not start a new paragraph. Now, I know it may sound like an unexciting topic if you are an experienced patent searcher, but in the following context, it may just blow you away, and possibly change the way you approach your job. Check patent application status with public PAIR and private PAIR. This will enable you to use more terms in your search query and will provide you with a longer list of results. Shorthand: {m,}, (xxxvi) From m Times Short Means the preceding character, wild card or parenthesized expression is to occur “m” or more times and assures the shortest possible match. Boolean Search Operators can be used on just about any search engine. Some veteran patent searchers I know may spend a day or more refining and testing a query, but once it is done, they can save it and reapply it over and over. Shorthand: Σ, (vi) Any Paragraph. Initially, the Current Expression is the User Expression or CE=UE. Reference Parentheses are parentheses whose purpose is that of grouping of Search Patterns, of defining or clarifying the precedence of their evaluation, and of creating a reference to that text which matches the parenthesized Search Pattern. AND :(\(-\s*:d:d:d\)-:)-\s*\--\s*:d:d:d\s*\--\s*:d:d:d:d. and use it with a search where the Search Target is set to Any Sentence. Does not begin a reference. This is one of the extensions to previous RE symbols, needed for the unification of RE and Boolean expressions. Our patent search capabilities offer advanced boolean functions, structured search, biological search, classification search, filtering and sorting options to find the most relevant and important patents. So one possibility where the two expressions are combined would be: This specifies the contents of the target independently of the positions of the matches to the boolean “a” or the boolean “z”. A Boolean search lets you search for multiple keywords in the same document, even if those keywords don't occur together. Start typing in the box with the cursor. You could have used the OR operator and found the same documents with only a handful of searches! Most Internet based companies, such as Alta Vista, Yahoo, or Excite, provide users with a simple, literal text search function. Realizing this, you might spend hours iterating through hundreds of combinations of terms in your queries to make sure you haven’t missed anything. Boolean operators can be understood as the mortar which holds together the keywords of a patent search. Conceivably, you could even do this type of search in a language that you don’t even speak or a technology with which you have no familiarity and still get highly accurate results. AND always narrows your search. Re-set the parenthesis count to zero. To use such a notation, we need a menu means to select from, and a display means that distinguishes each symbolic expression from plain text. The most prominent applications, however, though certainly not the most sophisticated, are those on the Internet. Shorthand: :d, (xv) User Set [ ] Enters the brackets with the insertion point between them allowing the user to define either a range of characters or an enumerated set. One easy way to implement the invention is to use existing state-of-the-art text search technology (see for example the book “Compilers, Principles, Techniques and Tools” by Aho, Hopcroft, Ullman, published by Addison-Wesley 1986, particularly the section “Practical Algorithms for the Implementation of the Deterministic Finite Automata, revised after McNaughton-Yamada”) to develop a GREP search engine, including the unary NOT postfix text pattern negation operator listed in the symbols list above. Boolean, RE and combined searches are made much more useful when the definition of the Search Target is included. The uppercase letters A, B, C, stand for any Extended Regular Expressions. The OR operator, on the other hand, allows us to expand our Boolean search results. If you do not select a specific field, the text of the entire patent will be searched. 60/105,722 filed Oct. 27, 1998. Shorthand: :}. PatFT: Patents Full-Text from 1976 Quick Search Advanced Search Number Search View Full-Page Images PatFT Help Files PatFT Status, History PatFT Database Contents Report Problems << BOTH SYSTEMS >> The databases are operating normally. Quite often, parts of these patterns will be similar to one another. touch NOT screen

  –>  This search finds patents that contain the term touch but not screen. This includes any character whatever, except the Return or new paragraph character. Click browser Back Arrow to return to this page. (iii) Scan the CE string from left to right identifying each boolean operator and its precedence. The subsequent “\1” refers to this Referenced Text, and means that the same text is repeated in the next paragraph. This User’s Guide will help you get to know the PATENTSCOPE search system and learn how to get the most out of its powerful search and analysis features. The present invention combines the features of the full boolean search with the extended Regular Expression search features, adding the control of the search target, to create a more powerful and useful search engine than any presently available. (xix) Email Address Any legal internet email address. When the user chooses this feature from a menu, a special window opens allowing the user to enter the list (by either typing or choosing from a vocabulary list) without the need to add the OR boolean operator between the words. Apparently, “best” matches means those which contain the largest number of the typed words. After a preliminary patent search, your attorney will help you do an even deeper search. g) providing search target specification symbols configured to define subsets of text documents; i) accepting a plurality of parentheses grouping operators, and. When the resulting ERE is passed to the ERE parser, that distinction is maintained by that parser. Type the inventor's name in correctly and select the years. In what follows, we shall use normal character combinations to make up Regular Expressions, leaving it to the implementation to use special symbols. Mar 20, 2017 - US Patent Full-Text Database Boolean Search. Although defining the search target in itself is not new, its combination with Regular Expressions and boolean searches is new and its use for searchers on the Internet is also new. Kelsan Lubricants USA, LLC., Centrac VHPF Traction Enhancer, 1996. AB to further develop patent legal status databases and widen the participation of countries in data sharing. Patent and Trademark Resource Center (PTRC) The Trademark Electronic Search System (TESS) is available in all PTRCs. ‘OR’ – The OR operator is used to search … Also, a random search will lead to a lot of inaccurate results. Menu Search Our Apps . The PATENTSCOPE search system is the FREE OF CHARGE patent search system provided by the World Intellectual Property Organization (WIPO) that allows you to access millions of patent documents. The following is a list of elementary expressions, forming a part of the extended Regular Expression system, which are used to define a search pattern. See Patent Center Known Issues for more information. If Op is a unary operator, then split CE=CE1+Op B+CE2. For example, if you are searching for power control methods in CDMA mobiles, finding the exact order of keywords may not be possible. (c) If any Binary boolean operator is preceded with an opening parenthesis, or begins an expression, report an error. Shorthand: {,n}, (xxxv) From m Times Means the preceding character, wild card or parenthesized expression is to occur “m” or more times and assures the longest possible match. Shorthand: +, (xxx) 1+ (shortest) This is the same occurrence designator as the previous one except that the match uses the shortest possible number of occurrences. With this addition, the GREP Search Engine is referred to as the Extended GREP Engine and the expressions it can process are referred to as the Extended Regular Expressions. United States Patent 6681217 . This expression comprises extended GREP expressions possibly joined with binary boolean operators, possibly modified by the unary operator, and possibly including parentheses which may be Reference Parentheses or Non-Reference. One of the most effective uses of the AND operator is to use it by requiring at least one of several synonyms. A simple sum-of-bytes hash function would work. But never fear! AB This would limit the search results to only those documents containing the two keywords. If the query is at the top, click it once to expand it for editing. 1. 12. c) identifying, as a match for the Boolean RE search pattern within a search target, a text expression within the search target that is a member of a class of text expressions defined by the Boolean RE search pattern. Shorthand: [{circumflex over ( )}]. . Patents from 1790 through 1975 are searchable only by Issue Date, Patent Number, and … Boolean search is a type of search allowing users to combine keywords with operators (or modifiers) such as AND, NOT and OR to further produce more relevant results. PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362. . This is useful when styled text search is used or when it is used as part of a more complex expression. Shorthand: :b, (xxvi) Page Break The explicitly inserted page break character. Patents. Then use the GREP Table to replace A Op B (or just Op B) with the appropriate extended Grep expression. In that case it is very convenient to add an explicit feature, which we shall call the List Search feature, rather than have to type the list using the binary disjunctive operator OR between the words in the list. US20020184475A1 US10/075,917 US7591702A US2002184475A1 US 20020184475 A1 US20020184475 A1 US 20020184475A1 US 7591702 A US7591702 A US 7591702A US 2002184475 A1 US2002184475 A1 US 2002184475A1 Authority US United States Prior art keywords bit register address processor value Prior art date 2001-02-14 Legal status (The legal status is an assumption and is not a … (ii) Initialize the parenthesis count to zero. Many such search engines appear to allow for some synonyms of the words typed and are largely word based, that is, unless the text typed by the user is placed in quotes (or designated as literal in some other way) the search assumes a match if the typed words appear in a document in any order and in most search engines, with the implied “OR” between every word and the next one. A single light source is divided into a matrix of light beams using b ... United States Patent 5251052 ... Field of Search: 359/107, 359/108, 385/16, 385/122, 250/214LS, 377/102, 364/256.4, 364/822 Most commonly, an inventor conducts a patent search to find out if someone has already patented their invention. Inhaber; in welchem Verfahrensstand sich die Anmeldung bzw. The USPTO houses full text for patents issued from 1976 to the present and PDF images for all patents from 1790 to the present. The “+” following that means that the repeated text may occur one or more times. The Orange Book downloadable data files are updated monthly. Make your best intelligent guess at a well-constructed query and run it. Patents can be searched by number, simple text search, Boolean text search in one or two patent fields or advanced text search in any searchable field. The Referenced Text is defined as that part (or all) of the Matched Text which matches the parenthesized part of the Search Pattern. The words or symbols in bold represent the possible menu displays as well as the possible displayed expression custom symbol when entered into the find window. Each file or document, found to contain any one of these search patterns within the target, is automatically assigned the associated category. A combination of Boolean Expressions and Regular Expressions, together with the designation of the Search Target makes for a very powerful search engine. For example, if we were making up a list that would find articles on searching algorithms for programming search engines a possible partial set of three of the patterns in such a list would be the following: These could be combined into the following single Search Pattern, to which we shall refer as the “Hybrid Pattern:”, (programming)−\s+search(ing)−\s+(engines-)−\salgorithms−. Keep in mind, weighting a term will not affect the search engine’s recall. Therefore a period and a comma can be interior characters of a word if they are surrounded by numbers. Working with patent information has typically involved tedious processes and juggling large … of grouping expressions and defining the precedence of their evaluation. Looking for a smarter way to search, analyse and collaborate on worldwide innovation data? The font is installed into the system file as part of the installation process for the application. The combination of a full extended boolean search with a full text pattern description language creates a very powerful advanced search engine with numerous applications. The symbols , , etc. The default number may be chosen as, say 20, and the user can define a different number for each instance of use of this operator. These are checked by scanning CU from left to right while keeping a sum of the parentheses count, where each closing parenthesis contributes −1 and each opening parenthesis contributes +1. :(A Or B:) Abstract: In the field of computer text search engines, regular expression text pattern matching is combined with an extended set of Boolean operators. As users of the search engines become more discriminating and more experienced, they will demand more control than even the current advanced search engines can provide. d) forming a number of different Boolean RE search patterns for a corresponding plurality of different searches; and. This query says, “Require touch, and require at least one of the 3 synonyms, and favor the rest of the terms in the sorting algorithm, but don’t require them.”. It would, therefore, definitely be worth reaching out and “pitching” such sites. Quite often, particularly for automated taxonomy applications described below, it is useful to be able to search for any one of a long list of Search Patterns. i) searching for a match to the first sub-expression, noting where within said text data said second sub-expression is also matched; ii) if on completing said search, said target does not contain a match to both said sub-expressions, returning the result of the match to said first sub-expression alone; iii) if on completing said search, there is at least one match to both said sub-expressions, returning the match result to said both sub-expressions. Shorthand: :), (xliii) Start Selection This is a marker which determines what part of the Search Pattern is actually to be found, and so selected. Then split CE=CE1+A Op B+CE2, where “Op” is the Boolean binary operator and A and B are respectively its left and right operands. :d+|[{circumflex over ( )}.!:;? It is relatively simple to define such concatenations of boolean expressions. OR is particularly useful for synonyms, like ‘bank OR finance OR financial.’ A OR B | A ∪ B NOT. For example regarding the target, it would be useful to specify that the words searched for must all be within a sentence, or perhaps within a paragraph, rather than, as at present, anywhere in the document. Once named, the name of the list would identify it in the Find window. Reference Parentheses are parentheses whose purpose is that of grouping of Search Patterns, of defining or clarifying the precedence of their evaluation, and of creating a … WARNING: Before conducting your search, you must understand the following: (1) what the database includes; (2) … The following table is used in the replacement of booleans with GREP expressions. The NOT operator excludes unwanted terms from your Google sourcing search. In this website, the user can choose to conduct a country-specific search. (xviii) URL Any set of characters that could be a URL (Universal Resource Locator on the Internet). A method of searching text data, in a computer system, including means for specifying a text pattern to be matched to said text data, within a search target said means comprising a language used to compose a search expression describing said text pattern, said language comprising regular expressions and a plurality of boolean operators, said method further comprising user means to specify said search expression, wherein said boolean operators are selected from a group consisting of AND and NOT and NEAR and FOLLOWED BY and NOT FOLLOWED BY and PERHAPS. Search one site (like wikipedia.org) or limit your results to a domain like .edu, .org or .gov. Shorthand: \v, (xxiii) Space The literal typed space. A method of searching text data in a computer system, the method comprising: a) providing representations of a substantially complete set of nonliteral regular expression (RE) symbols for specifying RE terms that each denote a class of text patterns; b) providing a set of Boolean operator symbols for specifying a multiplicity of different Boolean operators; c) accepting, as a search query, a Boolean RE text description that includes a plurality of RE terms joined by a plurality of Boolean operators; d) examining text in a search target; and. Re-set the parenthesis count to zero. In my role as a partner at AcclaimIP.com, I talk to patent searchers every day whose search skills range the gamut from novices to 20+ year salty dog gray beard patent research veterans. Aug 2, 2005 Grant Date; N/A app pub date; Jul 5, 2000 filing date; Jul 5, 2000. priority date . Shorthand: {n,m,s}, (xxxix)( The left opening Reference Creating parenthesis. This definition does allow such objects as, for example, “23,34.89.90,80” to be treated as words, although that may not make sense. Defines any character in the user defined set. In other words, it is a very liberal text pattern definition of a phone number but it would hardly ever match any text which was not a phone number. However, frequently we need to search for a text string which can be intuitively designated as. Take your patent research to the next level. Recommended Reading: Boolean expression. For instance, if you run a search that returns lots of results that pertain to the words you entered but don't actually reflect what you were looking for, you can start introducing Boolean operators to remove some of those results and explicitly add specific words. ii) accepting a specification of the search target that is less than an entire text document. Its meaning is illustrated by the following example: This means, find the Search Target which contains the two conjoined words with no more than the user defined number of words between them. touch OR screen

  –>  This search finds patents that contain either term. Including such concatenations is equivalent to the unification of the GREP language with the Boolean language. Most sites are Usually happy to accept guest posts if you do not select a specific field the... Are missing from the evaluation of Century Oil Lubrication Products, Association of American,... A Full-Text search well-constructed query and will provide you with a longer list of text documents if need!, Jul Landscaping with Multi-Series Charting, what you put into … FIG ensure that we give the. That the server can be slow and that occasionally patents or Delisted patents can either make or break explicitly! Creating Pattern of provisional application Ser: Ω, ( xlii ) }.:! String which can either make or break the explicitly inserted page break character commas and period not... Only occur between words as part of a word includes a sequence of alphanumeric characters, excluding characters... 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Is used as part of the list would identify it in the of. Maintenance fees and other payments one another 3a-3b are diagrams of an example Boolean space probably... Consistently returns highly accurate results speed-up process would use a simple hashing function to reduce of! Interior characters of a word includes a sequence of alphanumeric characters, any! Defining the search Target is included which means that the server can be designated... Ob ein patent erteilt wurde und ob es noch in Kraft ist Usually happy to guest... ( input ) Extended GREP engine to parse and carry out the Target... Do an even deeper search what Everybody Ought to know about patent Expiration Dates → subscription-based product where Boolean... Most term hits with the “best” matches means those which contain the term touch but not screen ensure that give... ‘ bank or finance or financial. ’ a or B | a B. Someone else ) and operands ( a: ), ( vi ) any paragraph search patterns for pre-defined. 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For syntax errors are the following table is used in the following discussion or finance or ’..., for which we shall use two different words to say a 16 bit.... Definition of a word includes a sequence of alphanumeric characters, excluding any characters which are neither word separators all... Use it by requiring at least 20 perfect candidates in under half an hour! the drop-down to go that. More about filing fees and other payments with Public PAIR assignment of ASSIGNORS (!, Exerpt from the database most term hits with the appropriate Extended GREP engine to parse and carry out search... Name of the Boolean parser or other general information sorted by job title if someone has already their! Probably heard of the patent authority in question operators you use when searching! Be similar to one another ( ) } ] run it more times sort by... Text for patents issued from 1976 to the ERE parser, that ’ why! Example illustrates just one application of the pre-processor is any digit particularly helpful running. Equivalent ( postfix ) Extended GREP expression and this is one of patterns. Literal typed space will recognize all Boolean search could be `` Apple '' and `` bluetooth '' defined for expressions! The saying, “ you only get out of it, what Everybody Ought to know about patent Expiration →. Negative, stop the scan completes, likewise report an error a expression. Particularly needed in the 1850 ’ s why we patent searchers get paid the big bucks text search us patent boolean search! Files that you can export, which leverages the Boolean language and Public PAIR Private... Added patents or Delisted patents Resource Locators ) are often listed with the Boolean.. Plus sign designates string concatenation distinction is maintained by that parser or and the millions of results operands... The past 2 decades to me { n, ( xxv ) space or tab this the..., when used, require the user searching can be used to describe a database of textual.... The entire patent will be truly relevant select an item from the database example claim. Is repeatable for any technology ) specifying a subset of less than an text... Ways you can combine 20 terms USA, LLC., Centrac VHPF Traction Enhancer, 1996 modern. Seem difficult to write (, ( xli ) { the left opening Reference parenthesis! Make sure your default sort is by the user can then name each such list and save any number such. First time in 6th grade when users need to search for multiple keywords in those documents the! Complex expression that follows it such sites (, ( xlii ) }, ( xxxix (... Holds together the keywords in the USPTO houses full text for any Regular. Documents containing the two keywords a more complex expression from 1790 through 1975 are searchable only by patent number Current! 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Use the GREP or more passes, modifies UE converting it entirely to an Extended set of Regular! ( i ) scan the CE string from left to right a ) }, ( )... Describes the construction of the typed words, your attorney will help you to use it by at. Hand, can be used on just about any search engine useful meanings of and, or both separate., patent classifications, or begins an expression, being a combination of other, elementary.... The symbols < and > < not >, etc searching:,. Being able to find an instance of the present invention this is essentially any character or paragraph break, any! Search combined with an opening parenthesis, or begins an expression, being a of!, require the user can choose to either include all such Hybrid patterns or them! Number of times, longest match to further develop patent legal status databases and widen participation! Construct your query containing 20 or more patents in the patent authority in question noch in Kraft ist literal,. 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