IPVision Search

There are three search modes: (1) Easy Search in which you enter terms in a search box and the search engine returns patents or applications having those terms in ANY of the Title, Abstract or Claims fields, (2) Structured Search in which you enter search terms in field name boxes, and (3) Expert Search or "free form" search in which you can combine fields and use Boolean operators.

NOTE: At your permission level any of these search methods will retrieve a maximum of 1000 patents and/or applications.

Structured Search
At the "Structured Search" tab you can enter search request text in the field boxes for specific fields or combinations of fields:
Except for the "Any of the common fields" box, entering text in more than one field box means "find records that mean ALL of the conditions"- e.g., Title contains red white AND AND Claims contain red OR white.

See Field Definitions for more information about searchable fields.

Note the various text syntax used in this example.

red white = find red AND white

red OR white = find the word "red" OR the word "white"

Although not shown, "red white" = find the exact phrase "red white"

Entering term(s) in the "Any of the common fields" box searches for documents that have those term(s) in ANY of the Title, Abstract or Claims of the document.
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"Expert Search

At the "Expert Search" tab you can do more advanced searches by using "command line" search syntax.

Sample command line searches:

  • ttl/(tennis and (racquet or racket))
    This is a search of the Title (ttl) field looking for patent records that have the terms "tennis" AND the terms "racquet" or "racket" in the Title
  • ttl/(tennis and (racquet or racket)) AND abst/graphite
    This is the same search as above but it also requires that the term "graphite" be in the Abstract (ABST) field.
  • TTL/ABST/ACLM/(tennis racquet)
    This returns records in which the words "tennis" and "racquet" appear in the Title(TTL) OR Abstract (ABST) OR Claims (ACLM).
    NOTE: If the words are enclosed with quotation marks - e.g., "tennis racquet" - then records with that exact phrase will be returned.
  • ABST/carbon and TTL/nano
    This returns records that have "carbon" in the Abstract (ABST) AND "nano" in the Title (TTL) fields.

See below for a list of Field Codes and the related search syntax for each field.

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Field Codes
IPVision's Field Codes and syntax generally follow those U.S. Patent and Trademark Office search site as shown in the following table.  Click on individual Field Codes for more information.   For more detailed information about search syntax go to Search Syntax.
Field Name Field Code Sample Search Syntax
Abstract ABST ABST/"carbon fiber"
Agent or Legal Representative LREP LREP/"Jones Day"
Application Date APD APD/10/12/1999->12/31/2008
Application Number APN APN/11001234 (do NOT include "/" as in 11/001234)
Assignee Name - Front Page Assignee(s) AN AN/Google
Assignee Address - Front Page Assignee AA AA/(CA or California)
Assignee Name - Current Assignee(s) ANC ANC/"Berkshire Hathaway"
Associated Application Publication Number AAPN AAPN/6783269
Claims ACLM ACLM/"carbon fiber"
Current U.S. Classification: U.S. Class Pair-Primary CCL CCL/712/100
Current U.S. Classification: U.S. Class Pair-Secondary CCLS CCLS/712/333
Cooperative Patent Classification: CPC Group - Primary CPC CPC/A21B1/42  or for all in subclass  CPC/A21B*
Cooperative Patent Classification: CPC Group - Secondary CPCS CPC/A21B1/42  or for all in group  CPC/A21B1*
Description/Specification SPEC SPEC/"carbon fiber"
Examiner-Primary EXP EXP/Ellis-Richard-L
Examiner-Assistant EXA EXA/Ho-Anthony
Government Interest GOVT GOVT/license or GOVT/DARPA
International Classes ICL ICL/C08F8/00
Inventor(s) IN IN/Langer-Robert
Inventor Address IA IA/(KS or Kansas)
Issue/Publication Date ISD or PD ISD/1/1/2000     PD/1/1/2000->1/31/2000
Kind Code (for published applications only) KCOD KCOD/A
Other References (from patent data) OREF OREF/"wireless antennae"
Parent Case Text PARN PARN/divisional
Patent Number PN PN/7171405 for U.S. Patent 71714055
Publication Number PN PN/20040133555 for U.S. Application 20040133555
Patent Status STAT STAT/E
References: patents or applications cited REFS REFS/6000000
References: Assignees REFSA REFSA/"Texas Instruments"
References: Number of BC BCS BCS/=>100
Referenced By: patents or applications referenced by U.S. patents REFBY REFBY/7000000
Referenced By: Assignees REFBYA REFBYA/"General Electric"
Referenced By: Number of FC FCS FCS/=>50
Title TTL TTL/"address geocoding"

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Field Definitions and Search Tips
The following describes the Field Codes in more detail and provides tips on searching:
Abstract (ABST)
The Abstract contains a brief summary of the invention.  Searching the Abstract using keywords casts a broader net than searching just the Title.

  • Sample Syntax:  ABST/nanotube
  • Sample Syntax:  ABST/"carbon nanotube"

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Agent or Legal Representative (AGT) or (LREP)
This field contains the name of the legal representative of the patent applicant.  With name fields, it is best to use the syntax: lastname-firstname:

  • Sample Syntax:  LREP/Mason-Perry
    Retrieves all records where Perry Mason was the agent.
  • Sample Syntax:  LREP/"Jones Day"
    Retrieves all records where the agent name contains the phrase "Jones Day".

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Application Date (APD)
This field contains the date when a complete application was received by the U.S. Patent and Trademark Office, following receipt of all filing material requirements.

  • Sample Syntax:  APD/10/12/1999->12/31/2008
    Retrieves records with Application Dates from October 12, 1999 through December 31, 2008.

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Application Number (APN)
This field contains the identification number assigned by a patent office to applications that have received a filing date.  For United States patent applications the application number is a 2-digit Series Code followed by a forward slash and then a 6-digit Serial Number. (Example: 11/924413).

TIP for U.S. Patents:  Commas are optional.  The Application Number must be entered as a full eight digit string without the "/" between the Series Code and the Serial Number. The Serial Number portion must have six digits - add leading zeros, if needed.

  • Sample Syntax:  APN/11000413

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Assignee Name (AN) - Front Page Assignee
A patent or patent application is owned by the inventor unless he or she assigns it to another person or to an entity (e.g., the inventor's employer).  The Assignee Name field shows the name of any such "assignee" at the time a patent application was published or the patent was granted.  These assignees are sometimes called "Front Page Assignees" because their names appear on the front page of the patent document when published or issued.

Patents can be assigned after they are issued.  See "Current Assignee Name" for more information about assignments after publication or issuance.

  • Sample Syntax:  AN/Google

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Assignee Address (AA) - Front Page Assignee
The address for the Front Page Assignee of a U.S. patent or application.  

TIP:  When searching for patents owned by an assignee from a particular state (e.g., California), use both the 2 letter state code used by the U.S. Patent and Trademark Office and also spell out the name:

  • Sample Syntax:  AA/(CA or California)

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Assignee Name - Current Assignee (ANC)
This field contains the name of the current owner of the patent or patent application based on the U.S. Patent and Trademark Office current assignment data.  If the Front Page Assignee (see "Assignee Name - Front Page Assignee") has not changed then the Current Assignee Name will be the same as the Front Page Assignee.  NOTE: a patent can be assigned without recording the assignment, although recording does provide certain protections - see USPTO General Information Concerning Patents.

  • Sample Syntax:   ANC/"Berkshire Hathaway"
  • Sample Syntax:   ANC/Google

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Associated Application Publication Number (AAPN)
In March 2001 the U.S. Patent and Trademark Office started publishing pending applications. In our database, the Associated Application Publication Number field contains the U.S. application publication number (if any) associated with each issued U.S. patent. For example, to find the U.S. application publication number for U.S. patent 6,783,269 enter that patent number in the AAPN field:

  • Sample Syntax:   AAPN/6783269

NOTE: Not all issued U.S. patents have applications that were published so your query may return zero results.


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Claims (ACLM)
This field contains the text of the patent's claims.  The claims define the invention that is patented and the scope of the protection provided by the patent.  Claims are like the "metes and bounds" that describe a parcel of real estate.

  • Sample Syntax:   ACLM/"carbon nanotube"

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Current U.S. Classification: U.S. Class Pair-Primary (CCL)
This field contains the primary USPTO class pair in which the patent was classified at the time of the most recent PTO Master Classification File.  The U.S. Patent and Trademark Office has developed a U.S. Patent Classification System (USPC) that it uses to classify inventions by area of technology.  The USPC contains approximately 450 main classes of invention and some 150,000 subclasses.  Inventions are usually assigned a main and subclass pair as in 714/699 "ERROR DETECTION/PULSE OR DATA ERROR HANDLING".  A single invention can be assigned more than one classification code, in which case, the first classification is called the "primary class pair" and the other codes are the "secondary class pairs".

If you are searching for a specific class and subclass, you should phrase your query as ccl/class/subclass, for example, ccl/2/5.  Some subclasses can contain decimal and alpha modifiers (for example, 345/1.1 or 427/3A)

TIP: If you are searching for the entire contents of a specific class without specifying a particular subclass, you should use the * wildcard character, as in CCL/427/*


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Current U.S. Classification: U.S. Class Pairs-Secondary (CCLS)
This field contains the Secondary U.S. Classes assigned to a patent or application by the U.S. Patent and Trademark Office using the U.S. Patent Classification System.  

  • Sample Syntax:   CCL/714/669

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Cooperative Patent Classification: CPC Group - Primary (CPC)
This field contains the Primary CPC Group assigned to a patent or application by the U.S. Patent and Trademark Office using the Cooperative Patent Classification System.
  • Sample Syntax:   CPC/A01B35/16    or CPC/A01B  35/16
  • For all in Subclass:   CPC/A01B*    i.e., put an asterix "*" at the end
  • For all in a Group:   CPC/A01B35*    i.e., put an asterix "*" at the end
The Cooperative Patent Classification (CPC) is a joint partnership between the USPTO and the European Patent Office (EPO) where the Offices agreed to harmonize their existing classification systems (ECLA and USPC, respectively) and migrate towards a common classification scheme.   As of June 1, 2015 U.S. utility patents and applications are no longer published with USPCs. Plant patents and design patents are the exception, and they will continue to carry a USPC designation.

The CPC has the following "top level" Sections:
  • A: Human Necessities
  • B: Operations and Transport
  • C: Chemistry and Metallurgy
  • D: Textiles
  • E: Fixed Constructions
  • F: Mechanical Engineering
  • G: Physics
  • H: Electricity
  • Y: Emerging Cross-Sectional Technologies

From the "top level" Section the classification hierarchy goes as follows:
    Hierarchy
      Section (one letter A to H and also Y)
        Class (two digits)
          Subclass (one letter)
            Group (one to three digits)
              Main group and subgroups (at least two digits)

    In the above example "A01B 35/16"
      Section:   A (Human Necessities)
        Class:   01 (A01: Agriculture; Forestry; Animal Husbandry; Hunting; Trapping; Fishing)
          Subclass:   B: (A01B: Soil Working In Agriculture Or Forestry; Parts, Details, Or Accessories Of Agricultural Machines Or Implements, In General
            Group:   35 (A01B 35: Other machines for working soil)
              Main group:   16 (A01B 35/16: with rotating or circulating non-propelled tools)

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Cooperative Patent Classification: CPC Group - Secondary (CPCS)
This field contains the Secondary CPC Group assigned to a patent or application by the U.S. Patent and Trademark Office using the Cooperative Patent Classification System.

  • Sample Syntax:   CPCS/A21B1/42   or  CPCS/A01B  1/42
  • For all in Subclass:   CPC/A21B*    i.e., put an asterix "*" at the end
  • For all in a Group:   CPC/A21B1*    i.e., put an asterix "*" at the end

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Description/Specification (SPEC)
This field contains the patent description, including a brief summary and background of the invention, the detailed description, and a brief description of the drawing, if applicable.

  • Sample Syntax:   SPEC/"carbon nanotube"

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Examiner-Primary (EXP)
This field contains the name of the primary examiner responsible for examining the patent application.  As with other name fields it is best to use the syntax: lastname-firstname-middleinitial:

  • Sample Syntax:   EXP/Ellis-Richard-L

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Examiner-Assistant (EXA)
This field contains the name of any assistant examiner involved in the examination of the patent application.  As with other name fields it is best to use the syntax: lastname-firstname-middleinitial:

  • Sample Syntax:   EXA/"Ho-Anthony"

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Government Interest (GOVT)
This field contains data describing the U.S. Government's Interest in the patent, e.g., a retained license by the department of government that funded research, such as the Defense Advanced Research Project Agency or DARPA.

  • Sample Syntax:   GOVT/DARPA
  • Sample Syntax:   GOVT/license

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International Classes (ICL)
This field contains the International Patent Classification(s) to which the patent has been assigned.  The International Patent Classification (IPC), established by the Strasbourg Agreement 1971, provides for a hierarchical system of language independent symbols for the classification of patents and utility models according to the different areas of technology to which they pertain.

  • Sample Syntax:   ICL/C08F8/00

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Inventor(s) (IN)
The person or persons whose invention is described in a patent.  As with other name fields it is best to use the syntax: lastname-firstname-middleinitial:

  • Sample Syntax:   IN/Langer-Robert-S
    Retrieves all records with Robert S Langer as an inventor
  • Sample Syntax:   IN/Langer
    Retrieves all records with an inventor name containing "Langer"

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Inventor Address (IA)
The address(es) for the Inventor(s) of a U.S. patent or application.  

TIP:  When searching for patents for Inventors from a particular state (e.g., California), enter both the 2 letter state code used by the U.S. Patent and Trademark Office and also spell out the name:

  • Sample Syntax:   IA/(KS or Kansas)

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Issue/Publication Date (ISD or PD)
For an issued patent this contains the patent Issue Date.  For a patent application this contains the application Publication Date.

  • Sample Syntax:   ISD/1/1/2000
    Retrieves all U.S. patents issued on January 1, 2000
  • Sample Syntax:   PD/1/1/2000->1/31/2000
    Retrieves all U.S. patent applications published from January 1, 2000 through January 31, 2000 inclusive.

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Kind Code (KCOD)
This field contains the Kind Code for the patent document.  This is based on the World Intellectual Property Organization (WIPO) Standard ST.16 codes (kind codes), that include a letter, and in many cases a number, used to distinguish the kind of patent document (e.g., publication of an application for a utility patent (patent application publication), patent, plant patent application publication, plant patent, or design patent) and the level of publication (e.g., first publication, second publication, or corrected publication).  Detailed information on Standard ST.16 and the use of kind codes by patent offices throughout the world is available on the WIPO web site at http://www.wipo.int/scit/en

See: "Kind Codes" Included on USPTO Patent Documents

  • Sample Syntax:   KCOD/A

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Other References (OREF)
This field contains other (non-patent) references cited by the Inventor or the Examiner as prior art, including books, journals, and conference proceedings.

  • Sample Syntax:  OREF/"Origin of Species"

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Parent Case Text (PARN)
This field contains the "Parent Case Text" from the Front Page of an issued U.S. patent, e.g., "This is a divisional of application Ser. No. 228,641 filed Aug. 5, 1988, now U.S. Pat. No. 4,851,862 issued July 25, 1989."

  • Sample Syntax:  PARN/divisional
    This retrieves all patents with the word "divisional" in the Parent Case Text field
  • Sample Syntax:  4851862
    This retrieves all patents that have the patent number "4851862" or "4,851,862" in the Parent Case Text field

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Patent/Document Number (PN)
This field contains the number for an issued patent or the document number for a published patent application.

  • Sample Syntax:  PN/7171405    for U.S. Patent 7,171,405
  • Sample Syntax:  PN/20040133555   for U.S. Published Application 20040133555

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Patent Status (STAT)
This field contains information about the status of an issued patent:
A= Abandoned
E= Expired due to Nonpayment of maintenance fees
RE= Expired but Reinstated after payment of maintenance fees

  • Sample Syntax:  STAT/E

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References: patents or applications cited (REFS)
This field contains the U.S. patents or applications that are cited by a U.S. patent.  By searching the REFS field you can find the U.S. patents that cite a given U.S. patent or published U.S. patent application; enter that patent number or published patent application number.  NOTE: The References field finds the "Forward Citation Patents" for a patent.

  • Sample Syntax:  REFS/6000000 to find patents that cite U.S. Patent 6,000,000
  • Sample Syntax:  REFS/20010049649 to find patents that cite U.S. Published Patent Application 20010049649

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References: Assignees (REFSA)
The Assignee/Owner of the Backward Citation Patents that are cited by a patent or patent application as prior art.  NOTE: These are the Front Page Assignees of the Backward Citation Patents, which are not necessarily the Current Assignees.  To find the Current Assignees do a "Current Assignee" analysis on the list of References/Backward Citation Patents you obtain from the search.

  • Sample Syntax:  REFSA/"Texas Instruments"
    Retrieves all patents owned at the date of issuance by Texas Instruments that are cited as prior art by other U.S. patents.

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References: Number of BC (BCS)
The number of Backward Citation patents or patent applications cited by a patent as prior art.  These are called "Backward Citations" because when a patent issues the patents or applications it cites as prior art are "backwards in time" relative to that date.

TIP: Use the BCS field to search for patents that cite more than a certain number of patents or published patent applications.

  • Sample Syntax:  BCS/=>100
    Retrieves all patents that cite 100 or more patents or applications.
  • Sample Syntax:  BCS/=>100 AND ISD/1/1/2008->1/31/2008
    Retrieves all patents issued in January 2008 that cited more than 100 patents or applications as prior art.

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Referenced By (REFBY)
The patents that cite a patent or published patent application as prior art.

TIP: To search for a document citing a particular patent as prior art, you should search for the patent number in this field. A search for 6000000 in the Referenced By field will retrieve all patents cited by patent number 6,000,000 as prior art.

  • Sample Syntax:  REFBY/6000000

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Referenced By: Assignees (REFBYA)
The Assignee/Owner of the Forward Citation Patents that cite a patent or patent application as prior art.  NOTE: These are the Front Page Assignees of the Forward Citation Patents, which are not necessarily the Current Assignees.  To find the Current Assignees do a "Current Assignee" analysis on the list of Referenced By/Forward Citation Patents you obtain from the search.

  • Sample Syntax:   REFBYA/"General Electric"
    Retrieves all patents that are cited by patents owned by General Electric.

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Referenced By: Number of FC (FCS)
The number of Forward Citation Patents that cite a patent or patent application as prior art.  These are called "Forward Citations" because they are issued after the patents or applications they cite, hence they are "forward in time" of the patents/applications they cite.

TIP: Use the FCS field to search for patents or applications that are cited by more than a certain number of patents.

  • Sample Syntax:   FCS/=>50
    Retrieves all patents or applications that are cited by 50 or more patents.

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Title (TTL)
This field contains the title of the patent or patent application.

  • Sample Syntax:   TTL/"wireless widget"

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Search Syntax
IPVision's search syntax generally follows that used at the U.S. Patent and Trademark Office search site.
Syntax Examples
There are basic syntax rules used by the search engine. These syntax rules apply whether you are (a) entering words or phrases in the main search box under "Easy Search" on the main page or in the field boxes under the "Structured Search" option or (b) combining words or phrases with specific Field Codes in the "Expert Search" option.

Term or Phrase Explanation More Information
tennis The most basic search is a word. This will retrieve all documents that have the word "tennis" in the appropriate field.  
tennis OR racquet An example of combining search words. This retrieves all documents that contain either the term "tennis" or the term "racquet" in the appropriate field. See Boolean Expression
tennis racquet This is the equivalent of the expression "tennis AND racquet". It retrieves only those documents that contain BOTH the words "tennis" and "racquet". See Boolean Expression
tennis NOT racquet This retrieves only those documents that contain "tennis" and do not contain "racquet. See Boolean Expression
"tennis racquet" This retrieves only those documents that contain the exact phrase "tennis racquet". See Boolean Expression
tennis AND (racquet OR racket) This retrieves only those documents that contain the word "tennis" and either the word "racquet" or "racket". See Boolean Expression
"tennis racquet"~5 This retrieves only those documents that contain the words "tennis" and "racquet" within 5 words of each other. See Proximity Searching
racquet? Single Character Wildcard: ?. This retrieves those documents that contain the words "racquet" or "racquets". The "?" tells the search engine to find all words that start with "racquet" and have any single character at the end. See Wildcard Characters
test* Multiple Character Wildcard: *. This retrieves those documents that contain the letters "test" and any other letter or letters at the end- e.g. test, tests, testing. See Wildcard Characters
router^4 or switch Relevance Boosting. This retrieves documents that contain either the term "router" or the term "switch". The search engine weights the documents giving a weight of 4 for each occurrence of the term "router" and a weight of 1 for occurrence of the term "switch". The results are displayed showing the highest weighted documents first. See Relevance Boosting
4/1/2009->4/15/2009 Date Field Searches. This retrieves documents whose "dates" are in the date range starting on April 1, 2009 and ending on and including April 15, 2009.   See Date Field Searching

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Boolean Expression
You can combine search terms using Boolean Expression, -i.e., logical operators.  The allowable operators are "AND", "OR", "NOT".
Operator Example Details
AND helmet and football Returns documents containing both "helmet" and "football".
OR helmet or football Returns documents containing "helmet" or "football" or both.
NOT helmet not football Returns documents containing only "helmet" and not "football".
NOTE: The Boolean Operators AND, OR, NOT are not case sensitive.
For the Structured Search option, simply type your logical expression into the appropriate field box.  For the Expert Search option, use the logical expression in combination with the appropriate Field Codes.
Grouping With Operators
You can use parentheses to group clauses to form sub queries. This can be very useful if you want to control the boolean logic for a query:

  • Sample Syntax: (club OR ball) AND golf

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Date Field Searching
Date fields use the format mm/dd/yyyy as in 12/10/2008.  For the month and day portion of the date field you do NOT have to pad with zeros- e.g. April 2, 2009 = 4/2/2009. Date fields can be searched for specific dates but note that in the U.S. patent applications are published only on Thursdays. To search Date Ranges: for a date field in Structured Search simply fill in the beginning and ending dates; in Expert Search specify the Field Name and use the operator "->" between the dates.
  • Search for a Specific Date:
    In Structured Search, enter in the Issue Date box:  4/2/2009
    In Expert Search, specify the field and date:  ISD/4/2/2009
    Retrieves documents where Issue Date (ISD) is April 2, 2009
  • In Expert Search, a Date Range:  APD/12/1/2008->12/31/2008
    Retrieves documents where the Application Date (APD) was in the month of December 2008.
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Proximity Searching
With Proximity Searching you can locate words or phrases that appear within a certain distance of each other in a document or field. To do a Proximity Search use the tilde, "~", symbol at the end of a word or phrase. For example:
  • Sample Proximity Search:  "golf ball"~10
    Retrieves documents where the words "golf" and "ball" appear within 10 words of each other
  • Sample Proximity Search:  "golf ball putter"~10
    Retrieves documents where the words "golf" and "ball" and "putter" appear within 10 words of each other
Note: Make sure that there are quotation marks "" around the words and that there are no spaces between the last quotation mark, the tilde, "~", symbol and the proximity number.

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Wildcard Characters
You can do single and multiple character wildcard searches within single terms (not within phrase queries). Wildcard characters can NOT be used as the first character of a word.
The Single Character Wildcard: ?
If you add a Question Mark (?) to a search word the search engine will find all words that have any character in that exact location in the word:

  • Wildcard Example: hi?    Retrieves: hid him hit his
  • Wildcard Example: te?t    Retrieves: tent test text

The Multiple Character Wildcard: *
If you add an Asterisk (*) to a search word the search engine will find all words that have any number of characters (including 0) in that relative location:

  • Wildcard Example: test*    Retrieves: test testing tests tester

You can use the * wildcard anywhere in a word except as the first character. However, using an * in the middle of a word can cast a "wide net" and may produce unwanted results:

  • Wildcard Example: th*t    Retrieves: thirst thought throughput

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Combining Wildcard Characters
You can use more than one single wildcard character (?) within a word. You can also use more than one multiple wildcard character (*) within a word. You can also mix and match these characters. If you chose to do this be very careful because the result can be a large number of hits that may not be at all relevant to your work.

  • Wildcard Example: te?t?    Retrieves: test tests text texts
  • Wildcard Example: c?r*    Retrieves: car cars carpool core corporation circle circular

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Relevance Boosting: ^5
Relevance Boosting gives you the ability to add more "weight" to one or more words or phrases in your search request. The search engine will order the search results list so that those documents with the highest weightings will appear at the top of the list based on your Boosting criteria. To Boost a term add a caret (^) at the end of the word or phrase and then add a weighting factor. A weighting factor of 2 places twice the weight on that word versus other words in the search request. A weighting factor of 4 places 4 times the weight, etc. By default, the boost factor is 1. The boost factor must be positive but it can be less than 1 (e.g. 0.3)
  • Boosting Example:  wireless and (router^3 or card)
    You are interested in wireless routers or cards but you would like to weight for wireless routers over wireless cards
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