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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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US5666142
0 cases1/8 sections
Patent Overview — US 5,666,142 A Title: "Ink jet recording system having improved functional devices for driving energy generating members" Patent number: US 5,666,142 A Application number: US 08/255,899 Assignee: Canon Inc. (original…
View full analysis →added 9/23/2026
US5668865
0 cases1/8 sections
Patent Overview — US 5,668,865 Title: Echo canceler E-side speech detector Patent number: US5668865A Application number: US08/606,934 Inventors: Donald Lars Duttweiler, Cheng Kim, Ying Get Tao Original assignee: Lucent Technologies Inc…
View full analysis →added 9/23/2026
US5671001
0 cases1/8 sections
Patent Overview: US 5,671,001 — "Leak resistant ink containment for a printer" Bibliographic data (from supplied text). U.S. Patent 5,671,001 (application US08/397,823) was filed March 3, 1995, and published/granted September 23, 1997…
View full analysis →added 9/23/2026
US5671282
0 cases1/8 sections
Patent Overview: US 5,671,282 A Title: Method and apparatus for document verification and tracking Patent Number: US 5,671,282 A (Application No. US08/376,861) Inventors: Gregory J. Wolff; David G. Stork; K. Venkatesh Prasad Assignee…
View full analysis →added 9/23/2026
US5671994
0 cases1/8 sections
Patent Overview — US 5,671,994 A Title: Flat and transparent front-lighting system using microprisms Patent number: US 5,671,994 A Application number: US 08/255,378 Inventors: Ping-Kaung Tai; Han Zou Original assignee: Clio Tech Inc…
View full analysis →added 9/23/2026
US5675581
0 cases1/8 sections
Patent Overview — US 5,675,581 A Title: Simulating user interference in a spread spectrum communication network Inventor: Samir S. Soliman Assignee: Qualcomm Inc. (original and current assignee listed) Application number: US 08/601,491…
View full analysis →added 9/23/2026
US5687301
0 cases1/8 sections
Patent Overview — US5687301A Title: Field correction of application specific printer driver problems Patent number: US5687301A Application number: US08/528,589 Filing date / priority date: 1995-09-15 Publication (grant) date: 1997-11-11…
View full analysis →added 9/24/2026
US5687940
0 cases1/8 sections
Patent Overview — US5687940A Title: Adjustable foot for upholstered furniture Patent number: US5687940A Application number: US08/589,402 Inventor: Rodney D. England Assignee: England Corsair Upholstery Manufacturing Co., Inc. (original…
View full analysis →added 9/21/2026
US5688042
0 cases1/8 sections
Patent Overview — US5688042A ("LED lamp") US5688042A is titled "LED lamp," invented by Abolfazl Madadi, Morteza Showleh, and David J. Rycroft, and originally assigned to Lumacell Inc. The application (US08/560,440) was filed November 17…
View full analysis →added 9/23/2026
US5689252
0 cases1/8 sections
I'll search for this specific patent number across USPTO and CAFC sources. Let me refine the search with targeted queries for the patent record and any 2026 appellate activity. Let me do one more targeted check for recent appellate or…
View full analysis →added 9/23/2026
US5689566
0 cases1/8 sections
Patent Overview — US5689566A Title: Network with secure communications sessions Patent number: US5689566A Application number: US08/547,346 Inventor: Minhtam C. Nguyen Assignee: Individual (original and current assignee listed as…
View full analysis →added 9/24/2026
US5692124
0 cases1/8 sections
Patent Overview: US5692124A Title: "Support of limited write downs through trustworthy predictions in multilevel security of computer network communications" Patent number: US5692124A (application US08/704,896) Inventors: James M. Holden…
View full analysis →added 9/21/2026
US5695269
0 cases1/8 sections
Patent Overview — US5695269A Title: Multi-color display lighting by LED Patent number: US5695269A Application number: US08/594,062 Inventors: Raymond Lippmann; Michael John Schnars; James Edward Nelson; Mark James Miller Original assignee…
View full analysis →added 9/23/2026
US5706134
0 cases1/8 sections
US 5,706,134 — "Light-diffusing sheet member" Bibliographic data (from supplied text) - Patent number: US 5,706,134 A - Application number: US 08/658,314; filed 1996-06-05 - Granted/published: 1998-01-06 - Inventors: Teruaki Konno; Koichi…
View full analysis →added 9/23/2026
US5711589
0 cases1/8 sections
Patent Overview — US 5,711,589 A Title: Plane light source unit Source: https://patents.google.com/patent/US5711589/en Bibliographic data (as listed): Inventors Makoto Oe and Issei Chiba; original assignee Mitsubishi Rayon Co. Ltd…
View full analysis →added 9/23/2026
US5715403
0 cases1/8 sections
Patent Overview — US5715403A Title: "System for controlling the distribution and use of digital works having attached usage rights where the usage rights are defined by a usage rights grammar." Patent number: US5715403A. Application…
View full analysis →added 9/23/2026
US5717989
0 cases1/8 sections
Patent Overview: US5717989A — "Full Service Trade System" Patent number: US5717989A Title: Full service trade system Inventors: Guy Frederick Tozzoli; Christopher James Lynch Original assignee: Full Service Trade System Ltd (later recorded…
View full analysis →added 9/23/2026
US5719986
0 cases1/8 sections
US5719986A — Video Signal Encoding Method Patent overview - Title: Video signal encoding method - Patent number: US5719986A - Application number: US08/641,491 - Inventors: Motoki Kato; Takashi Kojima - Assignee: Sony Corporation (original…
View full analysis →added 9/23/2026
US5721577
0 cases1/8 sections
Patent Overview — US 5721577 Title: Large capacity ink cartridge Patent number: US 5,721,577 A Application number: US08/434,218 Inventors: Bruce H. Ostermeier; Allan S. Miller Assignee: CalComp Inc. (listed as both original and current…
View full analysis →added 9/23/2026
US5721914
0 cases1/8 sections
Patent Overview: US5721914A — System and Method for Hierarchical Data Distribution Bibliographic data (from supplied text): - Title: System and Method for Hierarchical Data Distribution - Patent number: US5721914A; Application number…
View full analysis →added 9/24/2026