Hisense USA Corp. et al. vs. Light Guide Innovations LLC

Explore the PTAB proceeding IPR2025-01538 filed by Hisense USA Corp. et al. on 2025-09-16. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-01538

Filing Date

2025-09-16

Accorded Filing Date

2025-09-16

Institution Decision Date

2026-01-16

Last Modified Date

2026-02-18

Proceeding Type

IPR

Termination Date

2026-01-16

Trial Status

Discretionary Denial

Parties & Counsel

Petitioner

Hisense USA Corp. et al.

Represented By

Briggs, Heathet al

Patent Owner / Respondent

Light Guide Innovations LLC

Represented By

Rubino, Vincentet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 2800 - Semiconductors, Electrical & Optical Systems

Patent Information

1 Patent Involved

Respondent Application Number 12521490

Respondent Patent Number 8267537

External Links

Espacenet

Google Patents

Respondent Inventor Jun Seok Park

Respondent Tech Center TC 2800 - Semiconductors, Electrical & Optical Systems

Address and Attorney/Agent Information

40 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name BIRCH STEWART KOLASCH & BIRCH, LLP

Customer Number 2292

Address 2600 Park Tower Drive, Suite 600, Vienna, VA, 22180-7371, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
22463	Joseph Kolasch	703-205-8000
28380	James Slattery	703-205-8000
28977	Gerald Murphy Jr	703-205-8000
29271	Charles Gorenstein	703-205-8000
29680	Michael Mutter	703-205-8000
30330	Leonard Svensson	858-792-8855
32181	Marc Weiner	703-205-8000
32868	Andrew Meikle	703-205-8000
32881	Johnny Bailey	703-205-8000
39538	James Eller Jr	703-205-8000
40069	Mary Anne Armstrong	703-205-8000
40417	Maki Hatsumi	703-205-8000
40439	David Anderson Jr	703-205-8000
40953	Esther Chong	703-205-8000
41533	Christopher Mcdonald	703-205-8000
42325	David Bilodeau	703-205-8072
42874	Craig Mcrobbie	703-208-4002
43368	Paul Lewis	703-205-8000
43451	Laura Lutz	703-205-8000
47099	Michael Smith	304-624-8000
47260	Michael Britton	703-838-6529
47305	Jason Rhodes	703-205-8000
48501	Eugene Perez	703-205-8000
48917	Chad Billings	703-205-8000
50875	Chad Wells	703-205-8000
52327	Catherine Voisinet	703-205-8000
54577	Seth Kim	703-205-8000
58258	Chad Rink	703-205-8000
58565	James Larsen	425-298-6846
59981	Whitney Remily	703-205-8083
60738	Christopher Wheeler	310-822-2679
61007	Cheng Kang Hsu	703-205-8000
63406	Bradford Fritz	703-836-6505
67246	Eric Liou	703-205-8000
68859	Toyohiko Konno	703-205-8000
75395	Reed Risenmay	202-457-7523
76455	Qing Lin	703-205-8085
78391	Hyuk Jung Kwon	703-205-8000
78681	Atsushi Nakamura	703-205-8000
79684	Joseph Anderson	631-901-5580

Proceeding Documents

Director Discretionary Decision: Deny RESPONSE

2026-01-16 FILING PARTY: BOARD

Download

Patent Owner's Preliminary Response POPR

2025-12-22 FILING PARTY: PATENT OWNER

Download

1010

IPR2025-01538 - EX1010 - Judge Schroeder Calendar of Events Exhibit

2025-12-22 FILING PARTY: PETITIONER

Download

Petitioner's Opposition to Patent Owner's Request for Discretionary Denial of Institution RESPONSE

2025-12-22 FILING PARTY: PETITIONER

Download

1011

IPR2025-01538 - EX1011 - Docket Navigator Judge Schroeder Time to Trial Exhibit

2025-12-22 FILING PARTY: PETITIONER

Download

Hisense USA Corp. et al. vs. Light Guide Innovations LLC

Proceeding Overview

Parties & Counsel

Petitioner

Hisense USA Corp. et al.

Represented By

Patent Owner / Respondent

Light Guide Innovations LLC

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Director Discretionary Decision: Deny RESPONSE

Patent Owner's Preliminary Response POPR

IPR2025-01538 - EX1010 - Judge Schroeder Calendar of Events Exhibit

Petitioner's Opposition to Patent Owner's Request for Discretionary Denial of Institution RESPONSE

IPR2025-01538 - EX1011 - Docket Navigator Judge Schroeder Time to Trial Exhibit

Docket Control Order (Dkt. 31) in Light Guide Innovations LLC v. Walmart Inc., Case No. 2-25-cv-00312-RWS-RSP (Lead Case); Light Guide Innovations v. Hisense Co., Case No. 2:25-cv-00051- RWS-RSP (Member Case) dated August 4, 2025 (E.D. Tex.) Exhibit

Hisense Defendants’ Invalidity and Subject Matter Eligibility Contentions in in Light Guide Innovations LLC v. Walmart Inc., Case No. 2-25-cv-00312-RWS-RSP (Lead Case); Light Guide Innovations v. Hisense Co., Case No. 2:25-cv-00051-RWS-RSP (Member Case) dated September 22, 2025 Exhibit

Complaint for Patent Infringement (Dkt. 1) in Light Guide Innovations v. Hisense Co., Case No. 2:25-cv-00051-RWS-RSP dated January 17, 2025 (E.D. Tex.) Exhibit

Patent Owner's Request For Discretionary Denial of Institution RESPONSE

Patent Owner's Power of Attorney NOTICE

Patent Owner's Mandatory Notice NOTICE

Notice: Notice filing date accorded NOTICE

EX1005 - File History Excerpts for U.S. Patent No. 8,267,537 to Park Exhibit

EX1009 - TIPO Biblographic Data TWI248538B Exhibit

EX1004 - US20070247414A1 - Roberts Exhibit

EX1001 - US8267537 Exhibit

EX1006 - US20060187660A1 - Liu660 Exhibit

Notice: Power of Attorney NOTICE

EX1007 - TW_I248538_B Exhibit

Petition: as filed PETITION

EX1008- US20070065718A1 - Moon Exhibit

EX1002 - Declaration of Dr. Krames (2025.09.16) Exhibit

EX1003 - TWI248538B Translation & Certification Exhibit