Kangxi Communications Technologies vs. Skyworks Solutions Canada, Inc. et al.

Explore the PTAB proceeding IPR2025-00912 filed by Kangxi Communications Technologies on 2025-04-22. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-00912

Filing Date

2025-04-22

Accorded Filing Date

2025-04-22

Institution Decision Date

2025-09-12

Last Modified Date

2026-05-14

Proceeding Type

IPR

Termination Date

2025-09-12

Trial Status

Discretionary Denial

Parties & Counsel

Petitioner

Kangxi Communications Technologies

Represented By

Sangalli, Dianaet al

Patent Owner / Respondent

Skyworks Solutions Canada, Inc. et al.

Represented By

Lin, Haixiaet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 2600 - Communications

Patent Information

1 Patent Involved

Respondent Application Number 10857938

Respondent Patent Number 7409200

External Links

Espacenet

Google Patents

Respondent Inventor James H. Derbyshire et al

Respondent Tech Center TC 2600 - Communications

Address and Attorney/Agent Information

6 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Butzel Long

Customer Number 12075

Address 1909 K St. NW, Suite 860, Washington, DC, 20006, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
35502	Gunther Evanina	517-372-4433
50577	Kevin Roddy	202-787-5524
51137	Daniel Vivarelli Jr	202-454-2841
58813	Aaron Kamlay	202-454-2877
71297	Ian Harrison	202-787-5526
73690	Pabitra Chakrabarti	518-357-7486

Proceeding Documents

Notice: refund approved NOTICE

2026-05-14 FILING PARTY: BOARD

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Petitioner's Request for Refund of Post-Institution Fee OTHER

2026-05-12 FILING PARTY: PETITIONER

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Petitioner's Notice of Withdrawal of Request for Director Review NOTICE

2026-05-12 FILING PARTY: PETITIONER

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Petitioner's Request for Director Review of the Discretionary Denial of Institution Decision OTHER

2025-10-14 FILING PARTY: PETITIONER

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Patent Owner's Updated Power Of Attorney NOTICE

2025-10-01 FILING PARTY: PATENT OWNER

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Kangxi Communications Technologies vs. Skyworks Solutions Canada, Inc. et al.

Proceeding Overview

Parties & Counsel

Petitioner

Kangxi Communications Technologies

Represented By

Patent Owner / Respondent

Skyworks Solutions Canada, Inc. et al.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Notice: refund approved NOTICE

Petitioner's Request for Refund of Post-Institution Fee OTHER

Petitioner's Notice of Withdrawal of Request for Director Review NOTICE

Petitioner's Request for Director Review of the Discretionary Denial of Institution Decision OTHER

Patent Owner's Updated Power Of Attorney NOTICE

Order: ORDER Granting Patent Owner’s Motion for Withdrawal of Counsel 37 C.F.R. § 42.10 ORDER

Patent Owner’s Unopposed Motion for Withdrawal of Counsel Joseph F. Haag MOTION

Director Discretionary Decision: Deny RESPONSE

Petitioner's Opposition to Discretionary Denial Request RESPONSE

EX-1018 Order Granting Defendants Unopposed Motion for Automatic Stay Exhibit

Huan Zhao Declaration for U.S. Patent No. 9,853,620 Exhibit

KCT News Regarding KCT Founding Exhibit

Patent Owner's Request for Discretionary Denial RESPONSE

ITC Inv. No. 337-TA-1413, Huan Zhao (Open) Testimony July 14, 2025 Exhibit

U.S. Patent No. 9,853,620 Exhibit

Patent Owner's Updated Mandatory Notices NOTICE

Notice: Notice filing date accorded NOTICE

Patent Owner's Power of Attorney NOTICE

Patent Owner's Mandatory Notice NOTICE

EX-1013 U.S. Patent No. 5,898,909 Exhibit

EX-1002 Prosecution History of U.S. Patent No. 7,409,200 Exhibit

EX-1012 U.S. Patent Publication No. 2003/0139147 Exhibit

EX-1016 Wiley Dictionary Exhibit

EX-1015 U.S. Patent No. 6,297,694 Exhibit

EX-1017 EX-1017 Declaration of Ingrid Hsieh-Yee, Ph.D. Exhibit

Notice: Power of Attorney NOTICE

EX-1008 U.S. Patent Publication No. 2003/0089998 Exhibit

EX-1009 P. Wambacq et al., A single-package solution for wireless Exhibit

EX-1001 U.S. Patent No. 7,409,200 Exhibit

EX-1014 European Patent Application Publication No. EP 0 632 497 A2 Exhibit

EX-1011 J. Ryckaert et al., Single-package 5GHz WLAN RF Exhibit

EX-1007 E. Ngompe et al., “Architecture and Performance Exhibit

EX-1004 Curriculum Vitae of Dr. Ayman Fayed Exhibit

EX-1010 L.E. Larson, Integrated Circuit Technology Options Exhibit

EX-1003 Declaration of Dr. Ayman Fayed Exhibit

EX-1005 U.S. Patent Publication No. 2003/0017809 Exhibit

EX-1006 R. Magoon et al., A Single-Chip Quad-Band Exhibit

Petition: as filed PETITION