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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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US5386347
0 cases1/8 sections
US5386347 — Patent Overview Title: Illuminating apparatus and a method of manufacturing an edge light conductor for use therein Patent number: US5386347A Inventor: Iwao Matsumoto Original/current assignee (per listing): Photo Craft Co Ltd…
View full analysis →added 9/23/2026
US5390436
0 cases1/8 sections
Patent Overview: US5390436A — "Display System" Title: Display system Patent number: US5390436A Application number: US08/030,416 Inventor: John Ashall Original/current assignee: Illumination Research Group Inc (also listed as Illumination…
View full analysis →added 9/23/2026
US5392419
0 cases1/8 sections
Patent Overview — US 5,392,419 Title: Language identification system and method for a peripheral unit Inventor: Sean E. Walton Original Assignee: Hewlett Packard Co. (current assignee listed as HP Inc.) Application No.: US07/825,479 |…
View full analysis →added 9/24/2026
US5393990
0 cases1/8 sections
Patent Overview — US 5393990 A ("HEMT structure") Bibliographic data (from the supplied text): Title: "HEMT structure." Inventor: Erhard Kohn. Original assignee: Siemens Corporate Research Inc.; current assignee listed as Infineon…
View full analysis →added 9/21/2026
US5396350
0 cases1/8 sections
Patent Overview — US 5,396,350 A Title: "Backlighting apparatus employing an array of microprisms." The reference designates Karl W. Beeson, Scott M. Zimmerman, and Paul M. Ferm as inventors. Original assignee is AlliedSignal Inc.; the…
View full analysis →added 9/23/2026
US5406945
0 cases1/8 sections
Patent Overview — US 5,406,945 A Title: Biomedical electrode having a secured one-piece conductive terminal Patent number / application: US 5,406,945 A (application US08/066,716) Original assignee: NDM Acquisition Corp; current assignee…
View full analysis →added 9/23/2026
US5408388
0 cases1/8 sections
Patent Overview — US 5408388 A Title: Planar illuminating device Assignee/Original Assignee: Stanley Electric Co., Ltd. Inventors: Uruo Kobayashi, Yoji Oki, Nobuo Matsui, Yoshinori Go Key dates (as listed): Priority date 1992-01-24; filing…
View full analysis →added 9/23/2026
US5410598
0 cases1/8 sections
Patent Overview — US5410598A Title: Database usage metering and protection system and method Patent number: US5410598A Application number: US08/311,311 Inventor: Victor H. Shear Original/current assignee (as listed): Electronic Publishing…
View full analysis →added 9/23/2026
US5412653
0 cases1/8 sections
Patent Overview: US5412653A — Dynamic Switch Cascading System Title: Dynamic switch cascading system Patent number: US5412653A (application US08/138,288) Assignee: International Business Machines Corporation (original and current assignee…
View full analysis →added 9/23/2026
US5416842
0 cases1/8 sections
US5416842A — Method and apparatus for key-management scheme for use with internet protocols at site firewalls - Assignee: Sun Microsystems, Inc. (original assignee); inventor Ashar Aziz. - Filing/priority date: 1994-06-10 (application…
View full analysis →added 9/21/2026
US5417354
0 cases1/8 sections
Patent Overview — US 5,417,354 A Title: Universal carrier for fully rigged fishing poles Source: https://patents.google.com/patent/US5417354/en Patent number: US5417354A (application US08/019,156) Inventor: James C. Jones Assignee: None…
View full analysis →added 9/24/2026
US5418354
0 cases1/8 sections
Patent Overview — US 5,418,354 A ("Self Service Cart System") Bibliographic data (from source): US Patent 5,418,354 A; application US08/109,421; inventors Leonard W. Halling and Dale B. Halling; original assignee listed as Individual…
View full analysis →added 9/24/2026
US5418583
0 cases1/8 sections
Patent Overview: US5418583A Title: Optical illumination system and projection display apparatus using the same Patent number: US5418583A Application number: US08/039,770 Inventor: Yoshihiro Masumoto Original assignee: Matsushita Electric…
View full analysis →added 9/23/2026
US5418780
0 cases1/8 sections
Patent Overview — US 5,418,780 A Title: Routing logic means for a communication switching element Patent number: US 5,418,780 A (application US 07/668,582) Inventor: Michel A. R. Henrion Original assignee: Alcatel N.V.; current assignee…
View full analysis →added 9/23/2026
US5419455
0 cases1/8 sections
Patent Overview: US 5,419,455 — "Plate for Use with Stemware" Patent number: US 5,419,455 (application US08/239,721) Title: Plate for use with stemware Inventor: Kathleen Russeau Original assignee / current assignee: Individual…
View full analysis →added 9/23/2026
US5420606
0 cases1/8 sections
Patent Overview — US5420606A Title: Instant electronic coupon verification system Patent number: US5420606A | Application number: US08/123,192 Inventors: Paul G. Begum; Mark A. Geiger Assignee of record (as supplied): Original assignee…
View full analysis →added 9/23/2026
US5420854
0 cases1/8 sections
Patent Overview — US 5,420,854 Title: Digital interface system Patent number: US5420854A Assignee: Hitachi Ltd (original and current assignee per the source) Inventor: Masashi Hiraiwa Priority date: 1990-06-18 Application: US08/153,107…
View full analysis →added 9/23/2026
US5424524
0 cases1/8 sections
Patent Overview — US5424524A Title: Personal scanner/computer for displaying shopping lists and scanning barcodes to aid shoppers Patent number: US5424524A Application number: US08/082,257 Inventors: Jonathan P. Ruppert; Ronald C. Fish…
View full analysis →added 9/23/2026
US5424942
0 cases1/8 sections
Summary of U.S. Patent No. 5,424,942 (US5424942A) Important search caveat (per your instruction not to auto-correct or conflate similar numbers): My searches of CAFC 2026 dockets returned no appeal involving patent 5,424,942. The only CAFC…
View full analysis →added 8/27/2026
US5432526
0 cases1/8 sections
Patent Overview — US5432526A Title: Liquid crystal display having conductive cooling Patent number: US5432526A Application number: US07/515,881 Inventor: Gilbert P. Hyatt Original assignee / current assignee (as listed): Individual Filing…
View full analysis →added 9/23/2026