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        1. 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.

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