Patent invalidity dossiers.

Patent Overview — US5907604A Title: Image icon associated with caller ID Patent number: US5907604A; Application No. US08/823,939 Inventor: P. Robert Hsu Original assignee: Sony Corp; Sony Electronics Inc. (Current Assignee listed as…

Patent Overview — US 5,908,493 A Title: Filtering system for cleaning air Source: https://patents.google.com/patent/US5908493/en (fetched 2026-09-23) Bibliographic data (as listed): - Patent number: US 5,908,493 A - Application number: US…

Patent Overview — US 591,055 Title: Burglar-Alarm Patentee: Lewis M. Pratt, of Belleville, county of Republic, Kansas Assignee/co-owner: One-half assigned to J. A. Boyd, of the same place Patent date: October 5, 1897 Application filed: May…

Patent Overview — US 5,911,043 Title: System and method for computer-based rating of information retrieved from a computer network Source: https://patents.google.com/patent/US5911043/en (fetched 2026-09-23) Bibliographic data (per source)…

Patent Overview — US 5,913,000 Title: Method and apparatus for guiding optical signals Patent number: US5913000A Application number: US08/580,951 Inventors: Christopher Richard Doerr, Martin Zirngibl, Charles H. Joyner Original assignee…

I'll search for US patent 5917664 specifically, including USPTO sources and any 2026 CAFC activity. Let me check for any litigation or CAFC docket activity involving this patent. Search scope and results I searched for US Patent 5,917,664…

Patent Overview — US 5,919,551 A Title: Variable pitch structured optical film Assignee/Current Assignee (per listing): 3M Innovative Properties Co; also listed as 3M Co. Original assignee: 3M Innovative Properties Co. Inventors: Sanford…

Patent Overview — US 5,920,108 A Title: Late process method and apparatus for trench isolation Patent number / application: US 5,920,108 A; Application US 08/745,104. Inventors: Donald Frank Hemmenway and Lawrence George Pearce. Assignee…

Patent Overview — US 5,920,404 Title: Method and system for dynamic control of a messaging environment from a facsimile processor Patent number / application: US 5,920,404 A; application US 08/818,329, filed 1997-03-14. Priority date…

Patent Overview — US 5,921,651 A Title: Surface light source device of side light type having diffusing element with improved distribution pattern of light Assignee/Inventor: Original assignee Enplas Corporation; inventor Tsuyoshi Ishikawa…

Patent Overview — US 5,931,555 Title: Background lighting apparatus for liquid crystal display Patent number: US 5,931,555 (US5931555A) Application number: US08/794,652 Inventor(s): Fumiaki Akahane, Tooru Yagasaki, Tatsuaki Funamoto…

I'll search for this specific patent number across the USPTO and CAFC sources. Let me pull the full claim set and check for any litigation or CAFC activity. US Patent 5,933,161 — Summary Important caveat on identifiers: Per the strict…

Patent Overview — US 5,935,000 Title: Secure gaming ticket and validation method for same Inventors: Cayetano Sanchez, III; Walter Szrek Assignee (per source listing): Original assignee IGT Rhode Island LLC; Current assignee listed as IGT…

Patent Overview — US 5,937,162 Title: Method and apparatus for high volume e-mail delivery Patent number: US 5,937,162 (application US08/710,964) Assignee / inventorship: Inventors listed are John T. Funk, Curtis C. Generous, Bryan…

Patent Overview: US5940375A Title: Feedback control apparatus and cell scheduling apparatus for use with cell exchange Patent number: US5940375A (application US08/829,171) Assignee: Fujitsu Ltd (original and current assignee, per the…

Patent Overview — US 5,943,322 Title: Communications method for a code division multiple access system without a base station Patent number: US5943322A | Application: US08/644,658 | Filed / Priority: 1996-04-24 | Granted / Published…

Patent Overview: US5944405A Title: Flat light source using light-diffusing sheet with projections thereon Patent number: US5944405A Application number: US08/619,623 Inventor(s): Michiko Takeuchi; Toshikazu Nishio; Taiji Ishii Assignee: Dai…

Patent Overview: US5946030A Title: Apparatus and Method for Electronic Image Centering Patent Number: US5946030A Application Number: US08/184,794 Inventor: Alan Neal Cooper Assignee: Texas Instruments Incorporated (original and current…

Patent Overview — US 5,949,347 A Title: Light emitting diode retrofitting lamps for illuminated signs Assignee/Applicant of record (per supplied text): Original assignee Leotek Electronics Corp; later current assignees listed as Leotek…

Patent Overview: US 5,949,997 A Title: Method and apparatus for programming a microprocessor using an address decode circuit Patent number: US 5,949,997 A (application US08/778,519) Original assignee: NCR Corporation; current assignee…