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Patent invalidity dossiers.

7,163 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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US5615140
0 cases1/8 sections
Patent Overview — US5615140A Title: Fixed-point arithmetic unit Source: https://patents.google.com/patent/US5615140/en Bibliographic data (as supplied): Inventor Toshihiro Ishikawa; original assignee Matsushita Electric Industrial Co…
View full analysis →added 9/23/2026
US5617422
0 cases1/8 sections
Patent Overview: US5617422A — "High speed interface in a telecommunications network" Bibliographic data (as supplied): US Patent 5,617,422; application US08/513,593; filed 1995-08-10; priority date 1995-08-10; granted/publication date…
View full analysis →added 9/23/2026
US5619203
0 cases1/8 sections
Patent Overview: US 5,619,203 A — "Current Source Driven Converter" Patent number: US 5,619,203 A Title: Current source driven converter Application number: US 08/327,162 Priority/filing date: 1994-10-21 Publication (grant) date…
View full analysis →added 9/23/2026
US5619351
0 cases1/8 sections
Patent Overview: US5619351A Title: Surface-type illumination device and liquid crystal display Patent number: US5619351A Application number: US08/204,374 Inventor(s): Tatsuaki Funamoto; Toru Yagasaki; Fumiaki Akahane Original/Current…
View full analysis →added 9/23/2026
US5619492
0 cases1/8 sections
Patent Overview — US 5,619,492 A Title: CDMA communication system in which bit rates are dynamically allocated Patent number / application: US 5,619,492 A; application US 08/491,033 Inventors: Harry B. Press; Thomas R. Giallorenzi; Mark T…
View full analysis →added 9/23/2026
US5623424
0 cases1/8 sections
US5623424A — Patent Overview Title: "Rate-controlled digital video editing method and system which controls bit allocation of a video encoder by varying quantization levels" Patent number: US5623424A Application number: US08/466,766…
View full analysis →added 9/23/2026
US5623601
0 cases1/8 sections
Patent Overview — US5623601A Title: Apparatus and method for providing a secure gateway for communication and data exchanges between networks. Inventor: Hung T. Vu. Original assignee: Milkyway Networks Corp (recorded as MILKYWAY NETWORKS…
View full analysis →added 9/21/2026
US5625628
0 cases1/8 sections
Patent Overview — US5625628A Title: "Aloha optimization" Patent number: US5625628A; Application number: US08/404,707 Inventor: Robert G. Heath Assignee/current assignee (as listed): Hughes Network Systems LLC; JPMorgan Chase Bank NA…
View full analysis →added 9/21/2026
US5627549
0 cases1/8 sections
Patent Overview — US 5,627,549 A Title: Dual channel advertising referencing vehicle location Source: https://patents.google.com/patent/US5627549/en (fetched 2026-09-23) Bibliographic data (as supplied): Application US08/585,604; filed…
View full analysis →added 9/23/2026
US5629980
0 cases1/8 sections
Patent Overview — US5629980A Title: System for controlling the distribution and use of digital works Patent number: US5629980A (application US08/344,042) Assignee/owner of record in the excerpt: Original assignee Xerox Corp; current…
View full analysis →added 9/23/2026
US5630086
0 cases1/8 sections
Patent Overview: US 5,630,086 Title: Apparatus, systems and methods for controlling electronic memories Patent number: US 5,630,086 A Application number: US 08/161,937 Inventors: Bryan D. Marietta; Douglas A. Oppedahl Original assignee…
View full analysis →added 9/24/2026
US5634012
0 cases1/8 sections
Patent Overview: US 5,634,012 Title: System for controlling the distribution and use of digital works having a fee reporting mechanism Patent number: US 5,634,012 A Application number: US08/344,773 Inventors: Mark J. Stefik, Ralph C…
View full analysis →added 9/23/2026
US5638443
0 cases1/8 sections
Patent Overview — US 5,638,443 A Title: System for controlling the distribution and use of composite digital works Patent number: US 5,638,443 A (application US 08/344,776) Inventors: Mark J. Stefik, Daniel G. Bobrow, Peter L. T. Pirolli…
View full analysis →added 9/23/2026
US5638518
0 cases1/8 sections
Patent Overview: US5638518A Title: Node loop core for implementing transmission protocol in fibre channel Patent Number: US5638518A Application Number: US08/327,748 Inventor: Srinivasa R. Malladi Original Assignee: LSI Logic Corp (current…
View full analysis →added 9/23/2026
US5641219
0 cases1/8 sections
Patent Overview — US5641219A Title: Uniform illumination light emitting device Patent number: US5641219A (application US08/480,929) Inventor: Tatsuji Mizobe Assignee: Individual (original assignee: Individual) Key dates: Priority date…
View full analysis →added 9/23/2026
US5642337
0 cases1/8 sections
Patent Overview — US 5,642,337 Title: Network with optical mass storage devices Patent number: US 5,642,337 A Inventors: Orhun Oskay, Sanjay Kapoor, Phillip Hiroshige Assignees: Sony Corp; Sony Electronics Inc (original and current…
View full analysis →added 9/21/2026
US5644342
0 cases1/8 sections
US 5,644,342 — "Addressing System for an Integrated Printhead" - Patent number: US 5,644,342 A - Inventor: Dimitri Argyres - Original assignee: Hewlett-Packard Co.; current assignee listed as Hewlett-Packard Development Co. LP - Priority…
View full analysis →added 9/24/2026
US5644662
0 cases1/8 sections
Patent Overview: US5644662A Title: Multiple processing of radiographic images based on a pyramidal image decomposition Patent number: US5644662A Application number: US08/412,355 Inventor: Pieter Paul Vuylsteke Original assignee: Agfa…
View full analysis →added 9/24/2026
US5648955
0 cases1/8 sections
Patent Overview — US5648955A Title: Method for power control in a TDMA spread spectrum communication system Patent number: US5648955A | Application number: US08/480,898 Inventor(s): Ryan N. Jensen, Logan Scott, Claude M. Williams Original…
View full analysis →added 9/23/2026
US5649754
0 cases1/8 sections
Patent Overview — US 5,649,754 A Title: "Illuminating apparatus and a method of manufacturing an edge light conductor for use therein" Patent number: US5649754A. Application number: US08/372,102. Inventor: Iwao Matsumoto. Assignee…
View full analysis →added 9/23/2026