The catalog

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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US4183628
0 cases1/8 sections
Patent Overview: US4183628A Title: Electronic watch and display device for such watch Patent Number: US4183628A Assignee: Ebauches SA (original and current assignee, per listing) Inventors: Claude Laesser, Rene Viennet, Eric Saurer…
View full analysis →added 9/23/2026
US4192071
0 cases1/8 sections
Patent Overview — US4192071A, "Dental Appliance" Bibliographic data (per supplied text): Patent number US4192071A; application US05/873,430; inventor Norman Erickson; original assignee/current assignee listed as "Individual." Priority and…
View full analysis →added 9/23/2026
US4204453
0 cases1/8 sections
US4204453A — Patent Overview Title: Device for automatic tonal accompaniment in electronic musical instruments Patent number: US4204453A Application number: US05/862,006 Inventor: Ulrich Gross Original/current assignee: US Philips Corp…
View full analysis →added 9/23/2026
US421760
0 cases1/8 sections
Patent Overview: US 4,217,760 — "Oil Vaporizer and Burner" Patentee: Ephraim Ralph, of Duluth, Minnesota (county of St. Louis). No assignee is identified. Dates: Application filed March 8, 1889 (Serial No. 802,492); Letters Patent dated…
View full analysis →added 9/21/2026
US4220673
0 cases1/8 sections
Patent Overview: US 4,220,673 A Title: Low-temperature steam desorbate process for improved instant tea Patent number: US 4,220,673 A Inventor: Rudolf G. K. Strobel Assignee: Procter and Gamble Co (original and current assignee as listed)…
View full analysis →added 9/23/2026
US4228710
0 cases1/8 sections
Patent Overview — US 4,228,710 A Title: Cut-off saw attachment for machine tool Inventor: Sylvester G. Karbowski Original/Current Assignee (per listing): Individual Filing / Priority Date: 1979-05-23 Grant / Publication Date: 1980-10-21…
View full analysis →added 9/23/2026
US4237356
0 cases1/8 sections
Patent Overview: US 4,237,356 A Title: Electrical compression switch with contact movement assistor Patent number: US 4,237,356 A Application number: US05/787,215 Inventor: Klaus Ragaller Assignee: BBC Brown Boveri AG (Switzerland)…
View full analysis →added 9/24/2026
US4258643
0 cases1/8 sections
Patent Overview: US4258643A — Illuminated Indicator Gauge with Illuminated Pointer Title: Illuminated indicator gauge with illuminated pointer (as listed on the source page). Assignee/Inventor: Original assignee Nissan Motor Co Ltd…
View full analysis →added 9/23/2026
US4263623
0 cases1/8 sections
Patent Overview — US 4,263,623 A Title: "Slow-frame video camera/recorder and image-sensing and signal processing device for use therewith." Assignee/Inventor: Original assignee Eastman Kodak Co. (assignment recorded 1980‑11‑06 to Eastman…
View full analysis →added 9/23/2026
US428096
0 cases1/8 sections
US 428,096 — "Oil-Burner" (Martin Hathaway) Title: Oil-Burner Patentee: Martin Hathaway, of Atlanta, County of Fulton, State of Georgia Assignee: One-half assigned to John B. Roberts, of same place Application filed: July 31, 1889 (Serial…
View full analysis →added 9/21/2026
US4282560
0 cases1/8 sections
US Patent 4,282,560 — "Light Distributor" Bibliographic data (from supplied text): Inventors George N. Kringel and Nicholas E. Sachuk; original and current assignee A C A Products Inc; prior art date 1979-01-15; filing date 1980-06-23…
View full analysis →added 9/23/2026
US4288785
0 cases1/8 sections
Patent Overview: US4288785A Title: Light intensity modulator with digital control and a digital-analog converter comprising such a modulator Patent Number: US4288785A Original Assignee: Thomson CSF SA (current assignee listed as Thales SA)…
View full analysis →added 9/23/2026
US4292370
0 cases1/8 sections
Patent Overview — US4292370A Title: Moisture and temperature resistant polarizing lamination Patent number: US4292370A Application number: US06/100,933 Inventor: John A. Pekko Original assignee: Avery International Corp Current assignee…
View full analysis →added 9/23/2026
US4308835
0 cases1/8 sections
Patent Overview — US 4,308,835 A Title: Closed-loop fluidic control system for internal combustion engines Patent number: US4308835A Inventor: Harold G. Abbey Assignee: Original assignee listed as "Individual"; current assignee listed as…
View full analysis →added 9/23/2026
US4323557
0 cases1/8 sections
US4323557A — Pressure-Sensitive Adhesive Containing Iodine Title: Pressure-sensitive adhesive containing iodine Patent number: US4323557A Application number: US06/062,362 Inventors: Paul D. Rosso; Michael Y. Moss Original assignee…
View full analysis →added 9/23/2026
US4348338
0 cases1/8 sections
Patent Overview — US4348338A Title: Injection-type pressure-freed carburetor Patent number: US4348338A Application number: US06/251,060 Inventors: Jose L. P. Martinez; Jose P. Osorio Original Assignee: Individual Current Assignee (per…
View full analysis →added 9/23/2026
US4352359
0 cases1/8 sections
Patent Overview: US 4,352,359 — "Biomedical Electrode" Source: https://patents.google.com/patent/US4352359/en Bibliographic data (per supplied text): US Patent 4,352,359; application US06/155,191; filed 1980-06-02; granted/publication date…
View full analysis →added 9/23/2026
US4360264
0 cases1/8 sections
Patent Overview — US4360264A Title: Variable magnification slide copy camera Patent number: US4360264A Application number: US06/288,820 Inventors: Philip G. Baker; Gerald L. Matthews Original/current assignee (as listed): Polaroid Corp…
View full analysis →added 9/23/2026
US4364923
0 cases1/8 sections
Patent Overview — US 4,364,923 ("Chemical compounds") Bibliographic data (from the supplied excerpt): Application US06/259,015; inventors Peter B. Cook and John H. Hunt; original and current assignee Allen and Hanburys Ltd; priority date…
View full analysis →added 9/23/2026
US436932
0 cases1/8 sections
Patent Overview — US 436,932 Title: Injector Inventor: Daniel Best, of San Leandro, Alameda County, California Assignee: None stated in the supplied text Patent date: September 23, 1890 Application filed: April 29, 1890 (Serial No…
View full analysis →added 9/23/2026