Innoscience (Zhuhai) Technology Company, Ltd. et al. vs. Efficient Power Conversion Corporation

Explore the PTAB proceeding IPR2023-01382 filed by Innoscience (Zhuhai) Technology Company, Ltd. et al. on 2023-09-20. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2023-01382

Filing Date

2023-09-20

Accorded Filing Date

2023-09-20

Institution Decision Date

2024-03-26

Last Modified Date

2025-08-08

Proceeding Type

IPR

Termination Date

2025-03-25

Trial Status

Final Written Decision - Appealed

Parties & Counsel

Petitioner

Innoscience (Zhuhai) Technology Company, Ltd. et al.

Represented By

Lavenue, Lionelet al

Patent Owner / Respondent

Efficient Power Conversion Corporation

Represented By

Davis, Walteret 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 14447069

Respondent Patent Number 9748347

External Links

Espacenet

Google Patents

Respondent Inventor Jianjun Cao et al

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

Address and Attorney/Agent Information

26 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Blank Rome LLP

Customer Number 24998

Address 1825 Eye Street, NW, Washington, DC, 20006-5403, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
28419	Michael Greenbaum	202-772-5836
31063	Stephen Soffen	202-420-4879
32322	Russell Wong	713-632-8634
32699	Jon Grossman	202-420-2279
40220	Peter Weissman	202-772-5805
41151	Jay Lessler	212-885-5176
43631	Bruce George	215-569-5798
46510	Tara Marcus	202-772-5957
50239	Jonathan Mitchell	212-885-5000
59347	Hussein Akhavannik	202-420-2779
60073	Dipu Doshi	202-420-2604
63196	Matthew Homyk	--
65967	Jonathan King	215-569-5432
66273	Joseph Jackson	713-228-8600
67399	Daniel Peterson	713-632-8665
68030	Alexander Perry	202-420-3115
68383	Katherine Franco	713-632-8664
70684	Domingo Llagostera	713-632-8632
71223	Jonathan England	202-420-2747
71956	Cole Duncan	713-228-6601
72236	Ameya Paradkar	202-772-5849
72367	Megan Wood	202-420-2753
73315	Timothy Schwarz	202-420-2786
73782	Mark Mashack	202-420-2200
77797	Coalton Bennett	209-769-8007
80133	Matthew Mcdermott	716-812-6690

Proceeding Documents

Petitioner's Notice of Appeal NOTICE

2025-08-08 FILING PARTY: PETITIONER

Download

Order Denying Director Review of Final Written Decision MOTION

2025-06-10 FILING PARTY: BOARD

Download

Authorized Response to Director's Review Request OTHER

2025-05-02 FILING PARTY: PATENT OWNER

Download

3100

Ex. 3100 Exhibit

2025-04-25 FILING PARTY: BOARD

Download

Petitioner's Request for Director Review REQUEST

2025-04-24 FILING PARTY: PETITIONER

Download

Innoscience (Zhuhai) Technology Company, Ltd. et al. vs. Efficient Power Conversion Corporation

Proceeding Overview

Parties & Counsel

Petitioner

Innoscience (Zhuhai) Technology Company, Ltd. et al.

Represented By

Patent Owner / Respondent

Efficient Power Conversion Corporation

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

Order Denying Director Review of Final Written Decision MOTION

Authorized Response to Director's Review Request OTHER

Ex. 3100 Exhibit

Petitioner's Request for Director Review REQUEST

Final Written Decision: JUDGMENT Final Written Decision Determining No Challenged Claims Unpatentable 35 U.S.C. § 318(a) FINAL

Other: Hearing transcript OTHER

Petitioner's Demonstratives Exhibit

Petitioner's Updated Exhibit List NOTICE

Patent Owner's Demonstratives OTHER

Patent Owner LEAP Request granted NOTICE

Petitioner LEAP Request Granted NOTICE

Joint Stipulation for Alternative Schedule for Serving Demonstratives OTHER

ORDER Setting Oral Argument 37 C.F.R. § 42.70 ORDER

Patent Owner's Request for Oral Argument OTHER

Petitioner's Request for Oral Hearing OTHER

Patent Owner Sur-Reply OTHER

Hand drawing from Deposition of Dr. James R. Shealy, May 16, 2024 Exhibit

Petitioner's Updated Exhibit List NOTICE

Petitioner's Reply REPLYTOOPP

Petitioner's Objections to Patent Owner's Evidence OTHER

EX 2006_Curriculum Vitae E. Fred Schubert Exhibit

Patent Owner's Response RESPONSE

Ex 2005_Declaration of E. Fred Schubert, PhD. [IPR23-1382] Exhibit

EX 2003_Diagram Exhibit

EX 2009_Respondents' Post-Hring Initial Brief (337-TA-1366) Exhibit

EX 2002_Diagram Exhibit

EX 2008_Evidentiary Hring Transcript, pgs 741-984 (Inv. No. 337-TA-1366) Exhibit

EX 2001_Patent Owner's Depo Notice-Dr. James Shealy (IPR23-01382) Exhibit

EX 2004_Depo Transcript-James Shealy Ph.D (IPR23-01382) Exhibit

EX 2007_Petition for IPR23-01384 of 335 Pat Exhibit

Petitioner's Updated Mandatory Notices NOTICE

Patent Owner's Notice of Deposition of J. Shealy NOTICE

Petitioner's Updated Power of Attorney NOTICE

Patent Owner's Updated Mandatory Notice NOTICE

Institution Decision: DECISION Granting Institution of Inter Partes Review 35 U.S.C. § 314 DECISION

Order: Scheduling Order ORDER

Patent Owner's Sur-Reply to Petitioner's Preliminary Reply NOTICE

Petitioner's Updated Exhibit List NOTICE

Excerpt of the Declaration of Dr. Eric Fred Schubert in Support of Complainant’s Opening Claim Construction Brief Exhibit

Excerpt of Complainant’s Supplemental Responses to Respondents’ Supplemental Invalidity Contentions Exhibit

Petitioner's Preliminary Reply OTHER

Patent Owner's Preliminary Response POPR

Patent Owner's Power of Attorney NOTICE

Patent Owner's Mandatory Notice NOTICE

Notice: Notice filing date accorded NOTICE

Declaration of Kelley Hayes Greenhill Exhibit

Declaration of Dr. James Richard Shealy Exhibit

U.S. Patent Application Publication No. US 2006/0108606 Exhibit

Power of Attorney - Innoscience (Zhuhai) Technology Company, Ltd. NOTICE

Certified Translation of Japanese Patent Publication No. JP H11- 261053 Exhibit

Hu, Enhancement mode AlGaN/GaN HFET with selectively grown pn junction Exhibit

U.S. Patent No. 5,905,274 Exhibit

Suh, p-GaN/AlGaN/GaN Enhancement-Mode HEMTs, 2006 64th Device Research Conf Exhibit

Prosecution History of the ’347 patent Exhibit

Petition for Inter Partes Review of U.S. Patent No. 9,748,347 PETITION

U.S. Patent Application Publication No. US 2005/0087763 Exhibit

Shenoy, Effect of Mask Wall Angle on Shape Evolution during Through‐Mask Exhibit

Xu, The Leakage Current of the Schottky Contact on the Mesa Edge of AlGaN Exhibit

Order Granting Defendants’ Unopposed Motion for Stay Pending ITC Proceeding Exhibit

U.S. Patent Application Publication No. US 2007/0007547 Exhibit

Petitioner and Complainant’s Proposed Claim Construction, ITC 337-TA-1366 Exhibit

Declaration of Shauna Wiest Exhibit

Japanese Patent Publication No. JP H11-261053 Exhibit

U.S. Patent Application Publication No. US 2010/0258843 Exhibit