The catalog

Patent invalidity dossiers.

7,246 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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US4479951
0 cases1/8 sections
Patent Overview: US4479951A Title: "1.4;3.6-Dianhydrohexitol nitrates substituted by purine bases, processes for their preparation and pharmaceutical compositions" Assignee: Dr. Willmar Schwabe GmbH & Co. KG (Dr. Willmar Schwabe…
View full analysis →added 9/21/2026
US4481522
0 cases1/8 sections
Patent Overview — US 4,481,522 A Title: CCD Imagers with substrates having drift field Assignee/Applicant: RCA Corp (original assignee; recorded assignment to RCA Corporation, a Corp. of DE) Inventors: Lubomir L. Jastrzebski and Peter A…
View full analysis →added 9/23/2026
US4482342
0 cases1/8 sections
Patent Overview: US 4,482,342 A — Blood Processing System for Cell Washing Title: Blood processing system for cell washing Assignee: Haemonetics Corp (original assignee); later assignments recorded to American Hospital Supply Corporation…
View full analysis →added 9/23/2026
US4484301
0 cases1/8 sections
Patent Overview — US 4,484,301 Title: Array multiplier operating in one's complement format Patent number: US 4,484,301 A Application number: US06/242,214 Inventors: William L. Borgerding; Vithal R. Patel Original assignee: Sperry Corp…
View full analysis →added 9/23/2026
US4500895
0 cases1/8 sections
Patent Overview: US4500895A — "Disposable Ink Jet Head" Bibliographic data (from supplied source): US Patent 4,500,895 A; application US06/490,754; filed 1983-05-02; published/granted 1985-02-19; original assignee Hewlett-Packard Co…
View full analysis →added 9/24/2026
US4506272
0 cases1/8 sections
Patent Overview — US4506272A Title: Thermal printing head Patent number: US4506272A Application number: US06/439,643 Inventor: Shoji Arai Original assignee: Matsushita Electric Industrial Co., Ltd. (current assignee listed as Panasonic…
View full analysis →added 9/23/2026
US4542449
0 cases1/8 sections
Patent Overview — US4542449A Title: Lighting panel with opposed 45° corrugations Assignee/Applicant of record (per source): Original assignee Canadian Patents and Development Ltd; current assignee listed as 3M Co (source notes assignee…
View full analysis →added 9/23/2026
US4551862
0 cases1/8 sections
Patent Overview: US 4,551,862 — "Prosthetic Sphincter" Bibliographic data (from supplied text): Application US06/435,761; filed 1982-12-15; granted and published 1985-11-12; inventor Terry M. Haber; original assignee "Individual"; assigned…
View full analysis →added 9/23/2026
US4567353
0 cases1/8 sections
Patent Overview: US4567353A — "High-accuracy temperature control" Title: High-accuracy temperature control Inventor: Masahiko Aiba Assignee: Sharp Corp (original and current assignee per listing) Prior art date: 1977-04-07 Filing date…
View full analysis →added 9/24/2026
US4567493
0 cases1/8 sections
Patent Overview — US4567493A Title: Liquid jet recording head Patent number: US4567493A Application number: US06/598,974 Inventors: Masami Ikeda; Hiroto Matsuda; Makoto Shibata; Hiroto Takahashi Original/current assignee: Canon Inc…
View full analysis →added 9/17/2026
US4573766
0 cases1/8 sections
Patent Overview — US 4,573,766 A Title: LED Staggered Back Lighting Panel for LCD Module Patent number: US 4,573,766 A Application number: US06/562,855 Inventors: Frederick M. Bournay, Jr.; Joel F. Giurtino Original assignee / current…
View full analysis →added 9/23/2026
US4586168
0 cases1/8 sections
Patent Overview — US 4,586,168 Title: Dual port memory sense amplifier isolation Patent number: US 4,586,168 A Application number: US06/560,628 Inventors: Richard H. Adlhoch; James Ward Original assignee: Motorola, Inc. (current assignee…
View full analysis →added 9/21/2026
US4589584
0 cases1/8 sections
Patent Overview: US4589584A Title: Electrical connection for polymeric conductive material Patent number: US4589584A Application number: US06/696,821 Inventors: Robert A. Christiansen; Frank M. Rose, Jr.; James R. Smith; Kenneth D. Woosley…
View full analysis →added 9/24/2026
US4606776
0 cases1/8 sections
Patent Overview — US4606776A Title: Air brush cleaning unit Patent number: US4606776A Application number: US06/655,589 Inventor: Lawrence R. Salis Original assignee / current assignee (as listed): Salis International, Inc., a corporation…
View full analysis →added 9/23/2026
US4634665
0 cases1/8 sections
Patent Overview: US 4,634,665 A Title: Processes for inserting DNA into eucaryotic cells and for producing proteinaceous materials Assignee: Columbia University in the City of New York (original and current assignee listed). Inventors…
View full analysis →added 9/23/2026
US4634845
0 cases1/8 sections
Patent Overview — US4634845A Title: Portable personal terminal for use in a system for handling transactions Patent number: US4634845A | Application: US06/685,622 | Inventors: William J. Hale, William R. Horst, Ellen P. Riley | Original…
View full analysis →added 9/24/2026
US4640289
0 cases1/8 sections
Patent Overview — US 4,640,289 Title: Biomedical electrode Inventor: Lawrence W. Craighead Original Assignee: Minnesota Mining and Manufacturing Co. (listed current assignee: 3M Co.) Application No.: US 06/551,069 Priority/Filing Date…
View full analysis →added 9/23/2026
US4657901
0 cases1/8 sections
Patent Overview — US 4,657,901 Title: Pharmaceutical composition Patent number: US4657901A Application number: US06/648,276 Inventors: Haruhiko Ueda, Hidekazu Toyoda, Minoru Fukuda Original assignees: Shiseido Co. Ltd. and Takeda Chemical…
View full analysis →added 9/23/2026
US4657904
0 cases1/8 sections
Patent Overview — US4657904A Title: Sulfur-containing bis-imino carbamate compounds, pesticidal composition and use Patent number: US4657904A Inventor: Themistocles D. J. D'Silva Assignee/ownership as listed: Original assignee Union…
View full analysis →added 9/23/2026
US4673254
0 cases1/8 sections
Patent Overview — US4673254A Title: Back-reflection type light diffusing apparatus Patent number: US4673254A Application number: US06/886,892 Inventors: Kuniaki Kato; Mutsumi Takahashi Original assignee: Tokyo Keiki Co., Ltd. (listed…
View full analysis →added 9/23/2026