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      Date Range*

        * Entering date parameters in the box will override the 'date range' buttons.
      Coverage Details: Coverage details for the patent database can be found here.
      Note that most fields support Phrase (ABST/"cardboard box"), Proximity (ABST/"cardboard box"~5), Wildcard (ABST/card*), and Leading Wildcard (ABST/*ectomy) queries. Some fields support range queries and math operations. Only basic examples are provided below. See the syntax guide for advanced syntax details.
      Field Abbr. Field Name Type Syntax Example and Comments
      AADR Assignee Address
      (complete string)
      Text AADR/California
      AADR/"Route 66"
      ABST Abstract Text ABST/widget
      ABST/"titanium steel"
      AC Assignee City Text AC/Paris
      AC/"New York"
      ACLM Claims Text ACLM/"cardboard box"
      ACN Assignee Country Text ACN/JP or ACN/US
      AGT Agent Text AGT/"Bacon & Thomas"
      AGTC Agent Address City Text AGTC/Paris
      AGTCN Agent Country Text AGTCN/JP
      AGTN Agent Name Text AGTN/smith
      AN Assignee Name Text AN/smith
      APD Filing Date Date Single Date: APD/1/5/2012
      Range: APD/1/1/1790->12/31/2001
      Math: APD/NOW-20YEAR->NOW
      APN Application Number Text APN/123456
      AS Assignee State Text AS/NY
      ASEX Assistant Examiner Name Text ASEX/jones
      CCL US Class Text CCL/100/50
      DN Document Number
      (same as PN)
      Number DN/6954235
      ECLA ECLA Classification Text ECLA/G08B25/10
      FOS Field of Search Text FOS/714/100
      FREF Foreign Patent Reference
      (entire string)
      Text FREF/titanium
      FREFN Foreign Patent Reference
      (number only)
      Number FREF/EP0628292
      IADR Inventor Address
      (entire string)
      Text IADR/"main street"
      IC Inventor City Text IC/Munich
      ICN Inventor Country Text ICN/GB
      IN Inventor Name Text IN/smith
      IPC IPC Classification Text IPC/A63F13/00
      IPCR IPC Revised Text IPCR/A63F13/00
      IS Inventor State (U.S.) Text IS/ca
      ISD Publication Date Date Single Date: ISD/1/5/2012
      Range: ISD/1/1/1790->12/31/2001
      Math: ISD/NOW-1MONTH->NOW
      KCOD Kind Code Text KCOD/b1
      OREF Other References Text OREF/titanium
      PARN Parent Case Text PARN/704,848
      PARN/"application Ser. No. 704,848"
      PCCL Primary Class Text PCCL/702/100
      PD Publication Date Date PD/12/08/2009
      PEX Primary Examiner Name Text PEX/smith
      PN Patent Number
      (same as DN)
      Number PN/6954235
      PRICN Priority Country Text PRICN/FR
      PRIN Priority Number Number PRIN/83711
      PRIR Foreign Priority Text PRIR/9/16/1990
      PT Document Type Text PT/PP

      Possible values:
      U (Utility)
      RE (Reissue)
      D (Design)
      PP (Plant Patent)
      REF US Patent Reference
      (entire string)
      Text REF/aluminum
      REFN US Patent Reference
      (number only)
      Number REFN/6000000
      SPEC Specification
      (a.k.a. Description)
      Text SPEC/aluminum
      TTL Title Text TTL/aluminum
      Additional fields are available via our API for commercial use. Please inquire if you would like access to these, and other, fields: Assignee Count, Claim Count, Expiration Date (with term extensions), Family Member Count, Image Count, Inventor Count, Priorities Count, Reference Count, Word Count, Assignment Count.
      Number Fields Document Number (e.g. 6123456 | EP1659867) coverage details Application Number (e.g. 229911 | EP20000945211)
      Common Fields All (e.g. Metal) Title (e.g. "metal detector") Abstract (e.g. television) Claim(s) (e.g. system) Description/Specification (e.g. "hand-held telephone")
      Date Fields Filing Date to (mm/dd/yyyy) Publication Date to (mm/dd/yyyy) Foreign Priority (e.g. 07/25/2002)
      Classification Current US Classification (e.g. 100/50) International Classification (e.g. G06F019/00)
      Inventor Fields Inventor (e.g. Jones Mark) Inventor Country (e.g. JP)      country codes Inventor State (e.g. NY)     US state codes Inventor City (e.g. New York)
      Assignee Fields Assignee (e.g. Sanyo) Assignee Country (e.g. JP)      country codes Assignee State (e.g. NY)     US state codes Assignee City (e.g. New York)
      References Domestic References (e.g. 5796187) Foreign References (e.g. JP02292118) Other References (e.g. patent law)
      Legal/Prosecution Information Parent Case Information (e.g. 10/007,521) Primary Examiner (e.g. Jones David) Assistant Examiner (e.g. Mathew Fenn) Attorney or Agent (e.g. Bacon & Thomas)

      Date Range* All years Last 20 years
      Word Stemming On Off
      Sort Order Chronological Relevancy
        * Entering date parameters in the box will override the 'date range' buttons.