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Patent invalidity dossiers.

7,175 patents in the database, sorted by number of on-file litigation cases. Of these, 2,988 have at least one tracked case across 6,606 litigations.

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  • US5980025
    0 cases1/8 sections

    Patent Overview: US 5,980,025 Title: Thermal inkjet printhead with increased resistance control and method for making the printhead Patent Number: US5980025A Application Number: US08/976,419 Inventors: Cathie J. Burke; Alan D. Raisanen…

    View full analysis →added 9/23/2026
  • US5982327
    0 cases1/8 sections

    Patent Overview — US 5,982,327 Title: Adaptive array method, device, base station and subscriber unit Source: https://patents.google.com/patent/US5982327/en Bibliographic data (per source): Application US09/005,998; filed 1998-01-12…

    View full analysis →added 9/21/2026
  • US5983270
    0 cases1/8 sections

    Patent Overview: US5983270A Title: Method and apparatus for managing internetwork and intranetwork activity Patent number: US5983270A Application number: US08/825,775 Inventors: Dalen M. Abraham; Todd A. Barnes; Paul F. Bouche; Thomas P…

    View full analysis →added 9/20/2026
  • US5987454
    0 cases1/8 sections

    Patent Overview: US 5,987,454 A Title: "Method and apparatus for selectively augmenting retrieved text, numbers, maps, charts, still pictures and/or graphics, moving pictures and/or graphics and audio information from a network resource"…

    View full analysis →added 9/23/2026
  • US5987547
    0 cases1/8 sections

    Patent Overview — US 5,987,547 Title: Network computer with interchangeable hard drive and data transceiver Patent number: US 5,987,547 A Application number: US08/825,545 Inventors: Carl M. Panasik; Periagaram K. Rajasekaran Assignee…

    View full analysis →added 9/23/2026
  • US5991807
    0 cases1/8 sections

    Patent Overview — US 5991807 A Title: System for controlling users['] access to a distributive network in accordance with constraints present in common access distributive network interface separate from a server. Patent number /…

    View full analysis →added 9/21/2026
  • US5991808
    0 cases1/8 sections

    US5991808A — "Task processing optimization in a multiprocessor system" Bibliographic data (from supplied excerpt) - Patent number: US5991808A; application US08/867,095, filed 1997-06-02 - Priority date: 1997-06-02; granted/publication…

    View full analysis →added 9/23/2026
  • US5994616
    0 cases1/8 sections

    Patent Overview — US 5,994,616 Title: "Targeted synthesis of protein in mammary gland of a non-human transgenic mammal" (as given). Patent number / application: US 5,994,616 A; application US 08/186,836. Inventor: Jeffrey M. Rosen (listed…

    View full analysis →added 9/23/2026
  • US5995922
    0 cases1/8 sections

    Patent Overview: US 5,995,922 Title: Identifying information related to an input word in an electronic dictionary Patent number: US5995922A Assignee/Current Assignee: Microsoft Technology Licensing LLC (original assignee: Microsoft Corp)…

    View full analysis →added 9/23/2026
  • US5999598
    0 cases1/8 sections

    Patent Overview — US 5999598 A Title (as listed): "Method and system for used selectable quality of service of facsimile of voice transmissions" (sic — reproduced literally from the source). Patent number: US5999598A. Application number…

    View full analysis →added 9/23/2026
  • US6000000
    0 cases1/8 sections

    Patent Overview — US 6,000,000 Title: Extendible method and apparatus for synchronizing multiple files on two different computer systems Patent number: US 6,000,000 A (application US09/072,274) Inventors: Jeffrey C. Hawkins; Michael…

    View full analysis →added 9/23/2026
  • US6000048
    0 cases1/8 sections

    Patent Overview — US 6000048 A Title: Combined logic and memory circuit with built-in memory test Assignee/Original Assignee: Cirrus Logic Inc. (per the source listing). Inventors: Srinivas Krishna and Bernard Sardinha. Key dates (from…

    View full analysis →added 9/21/2026
  • US6004334
    0 cases1/8 sections

    Patent Overview — US 6004334 A Title: Tongue cleaning apparatus Patent number / application: US 6004334 A; application US09/083,333 Inventor: Daniel Richard Mythen Assignee: Individual (original and current assignee listed as "Individual")…

    View full analysis →added 9/23/2026
  • US6004596
    0 cases1/8 sections

    Patent Overview — US 6004596A Title: Sealed crustless sandwich Patent number: US 6004596A Application number: US08/986,581 Inventors: Len C. Kretchman; David Geske Original assignee: Menusaver Inc Current assignee (per listing): Smucker…

    View full analysis →added 9/23/2026
  • US6005856
    0 cases1/8 sections

    Patent Overview — US 6005856A Title: Communication protocol for spread spectrum wireless communication system Patent number: US 6005856A Application number: US08/668,483 Inventors: Ryan N. Jensen, Charles L. Lindsay, Claude M. Williams…

    View full analysis →added 9/23/2026
  • US6005981
    0 cases1/8 sections

    Patent Overview — US 6005981 A Title: Quadtree-structured coding of color images and intra-coded images Patent number: US 6005981 A Application number: US08/631,652 Inventors: Hak-Leong Ng; Xiaonong Ran Original/current assignee: National…

    View full analysis →added 9/24/2026
  • US6006264
    0 cases1/8 sections

    Patent Overview — US 6006264 A Title: Method and system for directing a flow between a client and a server Patent number: US 6006264 A (application US09/050,524) Original assignee: Arrowpoint Communications Inc; current assignee listed as…

    View full analysis →added 9/21/2026
  • US6006299
    0 cases1/8 sections

    Patent Overview — US 6006299 A Title: Apparatus and method for caching lock conditions in a multi-processor system Patent number / application: US 6006299 A; application US08/204,592 Assignee: Intel Corp (original assignee; a 1994-06-10…

    View full analysis →added 9/23/2026
  • US6006528
    0 cases1/8 sections

    Patent Overview: US6006528A — "Air Conditioning System" Bibliographic data (from supplied text): - Title: Air conditioning system - Patent number: US6006528A; Application No. US08/961,303 - Inventors: Hidetoshi Arima, Nobuhiro Idei, Hisao…

    View full analysis →added 9/23/2026
  • US6007205
    0 cases1/8 sections

    Patent Overview — US 6007205A Title: Optical lens unit having internalized fan unit and projection apparatus housing the same Patent number: US 6007205A (application US08/737,957) Inventor: Motoyuki Fujimori Assignee: Seiko Epson…

    View full analysis →added 9/23/2026