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Patent invalidity dossiers.

7,247 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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US4811404
0 cases1/8 sections
Patent Overview — US 4,811,404 A Title: Noise suppression system Patent number: US4811404A Application number: US07/103,857 Inventors: Richard J. Vilmur, Joseph J. Barlo, Ira A. Gerson, Brett L. Lindsley Original assignee: Motorola Inc…
View full analysis →added 9/17/2026
US4821034
0 cases1/8 sections
Patent Overview: US4821034A Title: Digital exchange switch element and network Patent Number: US4821034A Inventors: Terry M. Anderson; Robert S. Cornelius Original Assignee: Ancor Communications Inc. (later listed as QLogic LLC)…
View full analysis →added 9/23/2026
US4826973
0 cases1/8 sections
US 4,826,973 — Delta Form of Aztreonam and Preparation Thereof Bibliographic data (from supplied text): - Patent number: US 4,826,973 A - Application number: US06/807,374; filed 1985-12-10 - Publication/grant date: 1989-05-02; anticipated…
View full analysis →added 9/23/2026
US4827508
0 cases1/8 sections
Patent Overview: US4827508A Title: Database usage metering and protection system and method Patent number: US4827508A (application US06/918,109) Inventor: Victor H. Shear Assignee/current assignee (per source): Original assignee Personal…
View full analysis →added 9/23/2026
US4827888
0 cases1/8 sections
Patent Overview — US 4,827,888 ("Nozzle") Title: Nozzle Patent number / application: US 4,827,888 A; application US07/184,334. (The source also lists related prior patent US4,798,190, from which priority is claimed.) Assignee: Nitrous…
View full analysis →added 9/21/2026
US4828888
0 cases1/8 sections
Patent Overview: US4828888A — "Liquid crystalline polymer composites" Bibliographic data (as supplied) - Patent number: US4828888A - Title: Liquid crystalline polymer composites - Application number: US07/015,758 - Inventors: Alan Buckley…
View full analysis →added 9/21/2026
US4857379
0 cases1/8 sections
Patent Overview — US 4,857,379 A Title: Sheetlike structure of fibers, especially as a reinforcement for plastics components Patent number: US4857379A Assignee: Verseidag Industrietextilien GmbH (original and current assignee per the…
View full analysis →added 9/21/2026
US4862197
0 cases1/8 sections
Patent Overview — US 4,862,197 A Title: Process for manufacturing thermal ink jet printhead and integrated circuit (IC) structures produced thereby Inventor: John L. Stoffel. Original assignee: Hewlett-Packard Co. (current assignee listed…
View full analysis →added 9/23/2026
US4872097
0 cases1/8 sections
Patent Overview — US 4,872,097 Title: Miniature low-voltage lighting fixture Patent number: US 4,872,097 A (application US07/279,961) Inventor: Jack V. Miller Assignee: None listed — original assignee and current assignee are both…
View full analysis →added 9/23/2026
US4873316
0 cases1/8 sections
Patent Overview: US4873316A Title: Isolation of exogenous recombinant proteins from the milk of transgenic mammals Patent number: US4873316A Application number: US07/065,994 Inventors: Harry Meade; Nils Lonberg Original assignee: Biogen…
View full analysis →added 9/23/2026
US4885799
0 cases1/8 sections
Patent Overview — US 4,885,799 Title: Load pull isolation switch for a fast locking synthesizer Patent number: US4885799A | Application: US07/069,796 | Inventor: Mark I. Van Horn | Original assignee: Motorola, Inc. (Schaumburg, Illinois, a…
View full analysis →added 9/21/2026
US4897771
0 cases1/8 sections
Patent Overview — US4897771A Title: Reflector and light system Patent number: US4897771A Application number: US07/125,323 Inventor: Jeffrey R. Parker Original assignee: Lumitex Inc. Priority/filing date: 1987-11-24 Publication (grant)…
View full analysis →added 9/23/2026
US4906070
0 cases1/8 sections
Patent Overview: US4906070A Title: Totally internally reflecting thin, flexible film Patent number: US4906070A Application number: US07/218,087 Inventor: Sanford Cobb, Jr. Original assignee: Minnesota Mining and Manufacturing Co Current…
View full analysis →added 9/23/2026
US4917929
0 cases1/8 sections
Patent Overview — US 4,917,929 Title: One piece adhesive bandage and package unit Patent number: US 4,917,929 A Inventor: Steven B. Heinecke Original assignee: Minnesota Mining and Manufacturing Co. (current assignee listed as 3M Co.)…
View full analysis →added 9/23/2026
US4921794
0 cases1/8 sections
Patent Overview — US 4921794 A Title: T7 DNA polymerase Patent number: US 4,921,794 A Assignee: Harvard University (original assignee; the source notes listed assignees "may be inaccurate" and that Google has not analyzed or warranted the…
View full analysis →added 9/23/2026
US4936862
0 cases1/8 sections
Patent Overview — US4936862A Title: Method of designing and manufacturing a human joint prosthesis. Inventors/Assignee: Peter S. Walker and Frederick C. Ewald; current assignee listed as Zimmer Technology Inc. (original assignee…
View full analysis →added 9/24/2026
US4938219
0 cases1/8 sections
Patent Overview — US 4938219 Title: Electrocardiographic electrode Patent number: US 4,938,219 A Inventors: Hiroyoshi Ishii; Kenzo Suzuki; Misao Kaneko; Hiroshi Kawamoto; Chuji Shimizu; Yasuaki Onodera Assignees (original and current)…
View full analysis →added 9/23/2026
US4940116
0 cases1/8 sections
US4940116A — Unattended Checkout System and Method Title: Unattended checkout system and method Inventors: David F. O'Connor; Wesley Dickover; Steven J. Tilidetzke Original assignee: Checkrobot Inc. Current assignee listing (per source)…
View full analysis →added 9/24/2026
US4956288
0 cases1/8 sections
US4956288A — Concise Overview Title: "Method for producing cells containing stably integrated foreign DNA at a high copy number, the cells produced by this method, and the use of these cells to produce the polypeptides coded for by the…
View full analysis →added 9/23/2026
US4956388
0 cases1/8 sections
Patent Overview: US4956388A Title: 3-aryloxy-3-substituted propanamines Patent number: US4956388A Application number: US07/462,925 Filing date: 1990-01-12 Publication/grant date: 1990-09-11 Priority date (assumed): 1986-12-22 Inventor(s)…
View full analysis →added 9/21/2026