Accelight Technologies, Inc. et al. vs. Applied Optoelectronics, Inc.

Explore the PTAB proceeding IPR2026-00093 filed by Accelight Technologies, Inc. et al. on 2025-11-03. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2026-00093

Filing Date

2025-11-03

Accorded Filing Date

2025-11-03

Institution Decision Date

2026-03-03

Last Modified Date

2026-04-27

Proceeding Type

IPR

Termination Date

2026-03-03

Trial Status

Discretionary Denial

Parties & Counsel

Petitioner

Accelight Technologies, Inc. et al.

Represented By

Bhattacharyya, Arpitaet al

Patent Owner / Respondent

Applied Optoelectronics, Inc.

Represented By

Carothers, Joet 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 14504500

Respondent Patent Number 9523826

External Links

Espacenet

Google Patents

Respondent Inventor Chao-Hung Tsai et al

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

Address and Attorney/Agent Information

11 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Secant IP

Customer Number 32047

Address 55 SOUTH COMMERCIAL STREET, MANCHESTER, NH, 03101, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
36384	Kevin Carroll	603-668-6560
37657	Norman Kinsella	713-416-0006
37896	Paul Nagy	503-439-6500
40126	Donald Perreault	603-668-6560
41252	Edmund Pfleger	603-668-6560
43256	Calvin Wells	503-439-6500
46767	Angel Herrera Jr	512-900-8500
48468	Mark Kendrick	818-905-3211
51902	Paul Kroon Jr	603-668-6560
64691	Oleg Salakhov	206-423-6670
71930	Zachary Cody	603-668-6560

Proceeding Documents

Order Denying Director Review of Institution Decision REHEARING

2026-04-27 FILING PARTY: BOARD

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PATENT OWNER’S OPPOSITION TO PETITIONER’S REQUEST FOR DIRECTOR REVIEW OF DISCRETIONARY DENIAL OTHER

2026-04-09 FILING PARTY: PATENT OWNER

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3101

Ex. 3101 Counsel email for Authorized response Exhibit

2026-04-03 FILING PARTY: BOARD

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3100

Ex. 3100 Request for authorization to file a new exhibit - Denied Exhibit

2026-04-02 FILING PARTY: BOARD

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Petitioner's Request for Director Review of Discretionary Denial REQUEST

2026-04-02 FILING PARTY: PETITIONER

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Accelight Technologies, Inc. et al. vs. Applied Optoelectronics, Inc.

Proceeding Overview

Parties & Counsel

Petitioner

Accelight Technologies, Inc. et al.

Represented By

Patent Owner / Respondent

Applied Optoelectronics, Inc.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Order Denying Director Review of Institution Decision REHEARING

PATENT OWNER’S OPPOSITION TO PETITIONER’S REQUEST FOR DIRECTOR REVIEW OF DISCRETIONARY DENIAL OTHER

Ex. 3101 Counsel email for Authorized response Exhibit

Ex. 3100 Request for authorization to file a new exhibit - Denied Exhibit

Petitioner's Request for Director Review of Discretionary Denial REQUEST

Director Discretionary Decision: Deny RESPONSE

EX1014 - Joint Administrative Motion to Stay Pending IPR Institution Decisions, Applied Optoelectronics, Inc. v. Accelight Technologies, Inc., Case No. 4:24-cv-09041-HSG (N.D. Cal.), filed Oct. 3, 2025 Exhibit

EX1009 - Joint Case Management Statement, Applied Optoelectronics, Inc. v. Molex, LLC, Case No. 4:23-cv-04787-JST (N.D. Cal.) Exhibit

EX1012 - Declaration of William D. Sterling Exhibit

EX1016 - Gupta et al., A Study of Helical Springs, IJSTM, Vol. No. 7, Issue No. 8, Aug. 2018 Exhibit

EX1010 - Time to Milestones for N.D. California, Docket Navigator (accessed January 7, 2026) Exhibit

PO Preliminary Response POPR

Ex. 2011 Exhibit

EX1011 - Petitioner’s Opposition to Patent Owner’s Request for Discretionary Denial of Institution in IPR2025-00433 against U.S. 9,523,826, filed by Cambridge Industries USA, Inc. Exhibit

EX1017 - US Patent No. 10,578,818 Exhibit

EX1013 - Complaint for Patent Infringement, Applied Optoelectronics, Inc. v. Accelight Technologies, Inc., Case No. 4:24-cv-09041-HSG (N.D. Cal.), filed Dec. 13, 2024 Exhibit

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

EX1015 - Petition for inter partes review of US Patent No. 10,578,818 in IPR2026-00094, filed Nov. 5, 2025 Exhibit

Ex. 2002 Exhibit

Ex. 2004 Exhibit

Ex. 2001 Exhibit

Ex. 2009 Exhibit

Ex. 2008 Exhibit

Ex. 2003 Exhibit

AOI'S REQUEST FOR DISCRETIONARY DENIAL RESPONSE

Ex. 2005 Exhibit

Ex. 2006 Exhibit

Ex. 2007 Exhibit

Ex. 2010 Exhibit

Petitioner's Stipulation OTHER

Notice: Mandatory Notice NOTICE

Notice: Power of Attorney NOTICE

Notice: Notice filing date accorded NOTICE

EX1006 - Certified English translation of Chinese Utility Model No. CN 2017 Exhibit

EX1003 - Declaration of Dr. Michael Lebby Exhibit

EX1002 - Prosecution History of the ’826 patent - Part 1 Exhibit

EX1005 - Certified English translation of Chinese Utility Model No. CN 2030 Exhibit

EX1004 - U.S. Patent No. 7,201,520 to Mizue et al. Exhibit

EX1002 - Prosecution History of the ’826 patent - Part 2 Exhibit

EX1007 - Chinese Utility Model No. CN 203026708 U to Li et al. Exhibit

Petition: as filed PETITION

EX1008 - Chinese Utility Model No. CN 201749226 U to Liu et al. Exhibit

EX1001 - U.S. Patent No. 9,523,826 Exhibit

EX1002 - Prosecution History of the ’826 patent - Part 3 Exhibit

Notice: Power of Attorney NOTICE