Microsoft Corporation vs. TS-Optics Corporation

Explore the PTAB proceeding IPR2025-00767 filed by Microsoft Corporation on 2025-03-31. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-00767

Filing Date

2025-03-31

Accorded Filing Date

2025-03-31

Institution Decision Date

2025-08-14

Last Modified Date

2025-09-17

Proceeding Type

IPR

Termination Date

2025-08-14

Trial Status

Discretionary Denial

Parties & Counsel

Petitioner

Microsoft Corporation

Represented By

Tehranchi, Babaket al

Patent Owner / Respondent

TS-Optics Corporation

Represented By

Cappaert, Katherineet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 2600 - Communications

Patent Information

1 Patent Involved

Respondent Application Number 10849190

Respondent Patent Number 7266055

External Links

Espacenet

Google Patents

Respondent Inventor Won-ik Cho et al

Respondent Tech Center TC 2600 - Communications

Address and Attorney/Agent Information

13 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name STAAS & HALSEY LLP

Customer Number 21171

Address 900 19th Street NW, Suite 201, WASHINGTON, DC, 20006, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
25908	David Pitcher	202-434-1500
28607	John Garvey	202-434-1500
31106	Richard Gollhofer	202-434-1500
34172	Gene Garner Ii	202-434-1500
35230	Paul Kravetz	202-434-1500
36162	Mark Henry	202-434-1500
41307	Mehdi Sheikerz	202-434-1500
53908	Thomas Jones	202-744-5247
58202	Temnit Afework	202-454-1551
65889	Sonny Choi	--
71259	Michael Lines	202-454-1567
82006	Eric Farnsworth	203-561-9675
83103	Grady Mcginnity	615-947-6475

Proceeding Documents

Notice: refund approved NOTICE

2025-09-17 FILING PARTY: BOARD

Download

Request for Refund OTHER

2025-09-15 FILING PARTY: PETITIONER

Download

Director Discretionary Decision: Deny RESPONSE

2025-08-14 FILING PARTY: BOARD

Download

1070

Ex. 1070 Exhibit

2025-07-18 FILING PARTY: PETITIONER

Download

2005

Defendant’s Disclosure of Preliminary Claim Constructions and Supporting Evidence in TS-Optics Corporation v. Microsoft Corporation, CDCA-8-24-cv-01974 Exhibit

2025-07-18 FILING PARTY: PATENT OWNER

Download

Microsoft Corporation vs. TS-Optics Corporation

Proceeding Overview

Parties & Counsel

Petitioner

Microsoft Corporation

Represented By

Patent Owner / Respondent

TS-Optics Corporation

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Notice: refund approved NOTICE

Request for Refund OTHER

Director Discretionary Decision: Deny RESPONSE

Ex. 1070 Exhibit

Defendant’s Disclosure of Preliminary Claim Constructions and Supporting Evidence in TS-Optics Corporation v. Microsoft Corporation, CDCA-8-24-cv-01974 Exhibit

Ex. 1030 Exhibit

Patent Owner's Updated Exhibit List NOTICE

Ex. 1045 Exhibit

Ex. 1068 Exhibit

Ex. 1067 Exhibit

Ex. 1044 Exhibit

Ex. 1049 Exhibit

Ex. 1027 Exhibit

Ex. 1064 Exhibit

Ex. 1048 Exhibit

Patent Owner's Preliminary Response POPR

Ex. 1043 Exhibit

Ex. 1061 Exhibit

Ex. 1039 Exhibit

Ex. 1063 Exhibit

Ex. 1020 Exhibit

Ex. 1035 Exhibit

Ex. 1055 Exhibit

Ex. 1033 Exhibit

Ex. 1066 Exhibit

Ex. 1051 Exhibit

Ex. 1062 Exhibit

Ex. 1034 Exhibit

Ex. 1022 Exhibit

Ex. 1040 Exhibit

Ex. 1032 Exhibit

Ex. 1037 Exhibit

Ex. 1059 Exhibit

Ex. 1021 Exhibit

Ex. 1050 Exhibit

Ex. 1069 Exhibit

Ex. 1053 Exhibit

Ex. 1041 Exhibit

Ex. 1025 Exhibit

Ex. 1026 Exhibit

Ex. 1024 Exhibit

Ex. 1054 Exhibit

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Ex. 1031 Exhibit

Ex. 1047 Exhibit

Ex. 1019 Exhibit

Ex. 1057 Exhibit

Ex. 1056 Exhibit

Ex. 1052 Exhibit

Ex. 1060 Exhibit

Ex. 1065 Exhibit

Ex. 1058 Exhibit

Opposition to Patent Owner's Request for Discretionary Denial RESPONSE

Ex. 1028 Exhibit

Patent Owner's Exhibit List NOTICE

Scheduling Order, Dkt. 31 in TS-Optics Corporation v. Microsoft Corporation, CDCA-8-24-cv-01974 Exhibit

Petitioner’s Invalidity Contentions in TS-Optics Corporation v. Microsoft Corporation, CDCA-8-24-cv-01974 Exhibit

Request for Discretionary Denial RESPONSE

ADR Order, Dkt. 32 in TS-Optics Corporation v. Microsoft Corporation, CDCA-8-24-cv-01974 Exhibit

Special Master Order, Dkt. 37-1 in TS-Optics Corporation v. Microsoft Corporation, CDCA-8-24-cv-01974 Exhibit