Cambridge Industries USA Inc. et al. vs. Applied Optoelectronics, Inc.

Explore the PTAB proceeding IPR2025-00437 filed by Cambridge Industries USA Inc. et al. on 2025-01-17. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-00437

Filing Date

2025-01-17

Accorded Filing Date

2025-01-17

Institution Decision Date

2025-08-26

Last Modified Date

2026-08-31

Proceeding Type

IPR

Termination Date

2026-07-27

Trial Status

Final Written Decision - Appealed

Parties & Counsel

Petitioner

Cambridge Industries USA Inc. et al.

Represented By

PISANO, NICOLAet 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 16257635

Respondent Patent Number 10788690

External Links

Espacenet

Google Patents

Respondent Inventor Kai-Sheng LIN 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 APPLIED OPTOELECTRONICS, INC.

Customer Number 27543

Address 13115 JESS PIRTLE BLVD., SUGAR LAND, TX, 77478, 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

Petitioner's Notice of Appeal NOTICE

2026-08-31 FILING PARTY: PETITIONER

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Final Written Decision: Final Written Decision Determining No Challenged Claims Unpatentable 35 U.S.C. sec. 318a FINAL

2026-07-27 FILING PARTY: BOARD

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Other: Hearing transcript OTHER

2026-07-21 FILING PARTY: BOARD

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Panel Change Order ORDER

2026-06-22 FILING PARTY: BOARD

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DECISION Petitioner’s Motion for Joinder 37 C.F.R. § 42.122(b) (IPR2025-01570) ORDER

2026-06-09 FILING PARTY: BOARD

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Cambridge Industries USA Inc. et al. vs. Applied Optoelectronics, Inc.

Proceeding Overview

Parties & Counsel

Petitioner

Cambridge Industries USA 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

Petitioner's Notice of Appeal NOTICE

Final Written Decision: Final Written Decision Determining No Challenged Claims Unpatentable 35 U.S.C. sec. 318a FINAL

Other: Hearing transcript OTHER

Panel Change Order ORDER

DECISION Petitioner’s Motion for Joinder 37 C.F.R. § 42.122(b) (IPR2025-01570) ORDER

Order: Setting Oral Argument 37 C.F.R. sec. 42.70 ORDER

Panel Change Order ORDER

Exh. 2005 Exhibit

PO SUR-REPLY TO PETITIONER’S REPLY OTHER

Petitioner's Request for Oral Argument NOTICE

Second Joint Stipulation to Adjust Scheduling Order NOTICE

Petitioner's Reply to Patent Owner's Response REPLYTOOPP

Transcript of Deposition of Alan Willner Exhibit

Second Amended Notice of Deposition of Alan E. Willner NOTICE

Joint Stipulation to Adjust Scheduling Order NOTICE

Petitioner's Amended Notice of Deposition of Alan E. Willner NOTICE

PATENT OWNER’S OBJECTIONS TO NOTICE OF DEPOSITION OF DR. ALAN E. WILLNER OTHER

Petitioner's Updated Power of Attorney NOTICE

Notice of Deposition of Alan E. Willner NOTICE

DECLARATION OF ALAN E. WILLNER, PH.D. IN SUPPORT OF PATENT OWNER'S RESPONSE Exhibit

Patent Owner's Response RESPONSE

General Order: Related Matters Updates ORDER

Institution Decision: Grant DECISION

CASE MANAGEMENT AND SCHEDULING ORDER 37 C.F.R. § 42.5 ORDER

Director Discretionary Decision: Refer RESPONSE

Petitioner's Opposition to Discretionary Denial Brief RESPONSE

Pisano Declaration Exhibit

Interim Process FAQs Exhibit

Ex. 2003 Exhibit

Ex. 2001 Exhibit

Ex. 2002 Exhibit

PO Discretionary Denial Brief RESPONSE

Notice: Power of Attorney NOTICE

Notice: Mandatory Notice NOTICE

NOTICE ACCEPTING CORRECTED PETITION NOTICE

Response to Correct Defect NOTICE

Notice: defective petition NOTICE

Chinese Patent CN208421455U - Wang Exhibit

Petition: as filed PETITION

English translation of CN208421455U - Wang Exhibit

Power of Attorney NOTICE

'690 Patent Image File Wrapper Exhibit

US20140146389A1 - Ye Exhibit

U.S. Patent 10,788,690 Exhibit

U.S. Patent No. 9,563,073 - Xiong Exhibit

Declaration of Dr. Andrew Kirk Exhibit

Curriculum Vitae of Dr. Andrew Kirk Exhibit

US20030053208A1 - Hata Exhibit

US20100002988A1 - Yoshie Exhibit

Scheduling Order in District Court Litigation Exhibit