Kangxi Communication Technologies (Shanghai) Co., Ltd. vs. SKYWORKS SOLUTIONS, INC.

Explore the PTAB proceeding IPR2024-01456 filed by Kangxi Communication Technologies (Shanghai) Co., Ltd. on 2024-11-12. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2024-01456

Filing Date

2024-11-12

Accorded Filing Date

2024-11-12

Institution Decision Date

2025-06-06

Last Modified Date

2026-05-11

Proceeding Type

IPR

Termination Date

2026-05-11

Trial Status

Terminated-Settled

Parties & Counsel

Petitioner

Kangxi Communication Technologies (Shanghai) Co., Ltd.

Represented By

Tyson, Christopheret al

Patent Owner / Respondent

SKYWORKS SOLUTIONS, INC.

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 14833076

Respondent Patent Number 9450579

External Links

Espacenet

Google Patents

Respondent Inventor Anuj Madan et al

Respondent Tech Center TC 2600 - Communications

Address and Attorney/Agent Information

8 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Chang and Hale LLP

Customer Number —

Address 19200 Von Karman, Suite 400, Irvine, CA, 92612, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
52718	James Chang	949-336-1454
61227	Patrick Reed	509-220-7358
67028	Don Neil Pua	949-672-6107
68226	Alan Hale	949-336-1454
68246	Kawon Lee	650-815-2600
70254	Fred Hale	858-707-4254
72376	David Barnhill	949-336-1454
74150	Yi Zhang	949-336-1454

Proceeding Documents

TERMINATION Due to Settlement After Institution of Trial 35 U.S.C. § 317; 37 C.F.R. § 42.74 TERMINATE

2026-05-11 FILING PARTY: BOARD

Download

2010

Order Granting the Joint Motion to Dismiss CDCA-8-24-cv-00974 Exhibit

2026-05-04 FILING PARTY: PATENT OWNER

Download

Joint Motion to Terminate Proceeding MOTION

2026-05-04 FILING PARTY: PATENT OWNER

Download

2008

Joint Motion to Dismiss CDCA-8-24-cv-00974 Exhibit

2026-05-04 FILING PARTY: PATENT OWNER

Download

2009

Notice of the ITC Commission Determination to Grant the Joint Motion to Terminate ITC-337-TA-1413 Exhibit

2026-05-04 FILING PARTY: PATENT OWNER

Download

Kangxi Communication Technologies (Shanghai) Co., Ltd. vs. SKYWORKS SOLUTIONS, INC.

Proceeding Overview

Parties & Counsel

Petitioner

Kangxi Communication Technologies (Shanghai) Co., Ltd.

Represented By

Patent Owner / Respondent

SKYWORKS SOLUTIONS, INC.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

TERMINATION Due to Settlement After Institution of Trial 35 U.S.C. § 317; 37 C.F.R. § 42.74 TERMINATE

Order Granting the Joint Motion to Dismiss CDCA-8-24-cv-00974 Exhibit

Joint Motion to Terminate Proceeding MOTION

Joint Motion to Dismiss CDCA-8-24-cv-00974 Exhibit

Notice of the ITC Commission Determination to Grant the Joint Motion to Terminate ITC-337-TA-1413 Exhibit

Joint Motion to Terminate ITC-337-TA-1413 Exhibit

Email exchange regarding IPR2024-01456 and 01457 Exhibit

Other: Hearing transcript OTHER

Patent Owner's Demonstrative Exhibits OTHER

EX-1054 Petitioner’s Trial Hearing Demonstratives Exhibit

Patent Owner’s LEAP request GRANTED Danny Perry NOTICE

Patent Owner's Sur-Reply OTHER

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

Petitioner’s Request for Oral Argument OTHER

Patent Owner's Request For Oral Argument OTHER

EX-1052 Excerpts from Penguin Dictionary of Electronics (4th ed. 2005) Exhibit

EX-1053 Excerpts from EX-1037 (Prosecution History of ’579 Patent) Exhibit

EX-1050 Transcript of December 11, 2025 Deposition Dr. Wentzloff Exhibit

Petitioner’s Reply to Patent Owner Response REPLYTOOPP

EX-1051 Excerpt from McGraw-Hill Dictionary of Electrical and Computer Engineering (6th ed. 2003) Exhibit

Notice of Joint Stipulation to Modify the Scheduling Order NOTICE

Petitioner’s Notice of Deposition of Dr. David Wentzloff NOTICE

Patent Owner's Updated Power Of Attorney NOTICE

McGraw-Hill Dictionary of Electrical and Computer Engineering (6th Ed. 2003) Exhibit

CV of Dr. David Wentzloff Exhibit

Patent Owner's Response RESPONSE

Deposition Transcript of Dr. Larson Exhibit

Certified English Translation of Japanese Patent Publication No. JP 2006-121217 (Ex-1006) Exhibit

Declaration of Dr. David Wentzloff Exhibit

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

General Order: Related Matters Updates ORDER

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

Patent Owner’s Notice of Deposition of Dr. Lawrence E. Larson NOTICE

Notice of Joint Stipulation to Modify the Scheduling Order NOTICE

E-mail to the parties Exhibit

Patent Owner's Updated Mandatory Notices NOTICE

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

SCHEDULING ORDER ORDER

Notice: NOTICE OF FILING DATE ACCORDED TO PETITION AND TIME FOR FILING PATENT OWNER PRELIMINARY RESPONSE NOTICE

Patent Owner's Power of Attorney NOTICE

Patent Owner's Mandatory Notice NOTICE

EX-1004 Curriculum Vitae of Larry Larson Exhibit

EX-1046 Integration of RF Systems on a Chip Exhibit

EX-1023 U.S. Patent No. 7,359,677 Exhibit

EX-1008 General Purpose RF Switches Exhibit

EX-1012 Excerpts of The Benchtop Electronics Reference Manual Exhibit

EX-1035 KIPRIS _ Google Translate version of EX-1034 Exhibit

EX-1022 U.S. Patent Publication No. 20110294443 Exhibit

EX-1029 Single-Pole Double-Throw CMOS Switches for 900-MHz and 2.4-GHz Appl Exhibit

EX-1033 AS191-73, AS191-73LF_ PHEMT GaAs IC High-Linearity 3 V Control SPDT Exhibit

EX-1015 Japanese Patent Publication No. JP2011-166663 Exhibit

Petitioner's Power of Attorney NOTICE

EX-1040 Antenna Switch Linearity Requirements for GSM/WCDMA Mobile Phone Exhibit

EX-1041 Top Considerations When Buying or Specifying an RF Switch Exhibit

EX-1044 Editorial Nothing Magic About 50 Ohms Exhibit

EX-1034 Korean Patent Publication No. KR100967847B1 Exhibit

EX-1017 U.S. Patent Publication No. 20130154761 Exhibit

Petition : as filed PETITION

EX-1001 U.S. Patent No. 9,450,579 Exhibit

EX-1036 Evaluating pHEMT Process Improvements Using Wafer Level RF Tests Exhibit

EX-1019 EP Patent No. 2348532 Exhibit

EX-1018 U.S. Patent No. 6,698,082 Exhibit

EX-1016 EN Translation of Japanese Patent Publication No. JP2011-166663 Exhibit

EX-1031 SKY14151-350LF 20 Mhz-2.5 GHz High Power SP4T Switch With Decoder Exhibit

EX-1028 Highly Linear 4.9-5.9 GHz WLAN Front-End Module Exhibit