Western Digital Technologies, Inc. vs. LONGITUDE LICENSING LTD.,

Explore the PTAB proceeding IPR2023-01230 filed by Western Digital Technologies, Inc. on 2023-07-20. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2023-01230

Filing Date

2023-07-20

Accorded Filing Date

2023-07-20

Institution Decision Date

2024-01-23

Last Modified Date

2026-07-22

Proceeding Type

IPR

Termination Date

2025-01-21

Trial Status

Final Written Decision

Parties & Counsel

Petitioner

Western Digital Technologies, Inc.

Represented By

O'Dell, Davidet al

Patent Owner / Respondent

LONGITUDE LICENSING LTD.,

Represented By

Milkey, Jameset 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 14480768

Respondent Patent Number 9207701

External Links

Espacenet

Google Patents

Respondent Inventor Koichiro HAYASHI et al

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

Address and Attorney/Agent Information

13 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Kunzler Needham Hilton

Customer Number 36491

Address 50 W. Broadway, Suite 900, Salt Lake City, UT, 84101, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
38527	Brian Kunzler	801-994-4646
48177	Victoria Romney	801-994-4646
52321	Alexis Nelson	801-326-9806
54134	Jason Graff	480-313-6637
54491	Scott Thorpe	801-692-0493
56302	Thomas Briscoe	603-545-0010
56421	Bruce Needham	801-994-4646
58043	Daniel Hopkinson	801-994-4646
60445	Bryan Massey	801-994-4646
66011	Scott Hilton	801-994-4646
68728	Robert Gempeler	801-994-4646
77924	Alandra Adams	435-659-5214
80514	Bryan Pitt	801-994-4646

Proceeding Documents

Fed. Cir. Order Dismissing Appeal OTHER

2026-01-29 FILING PARTY: BOARD

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Petitioners' Notice of Appeal NOTICE

2025-03-24 FILING PARTY: PETITIONER

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Petitioners' Updated Mandatory Notices NOTICE

2025-03-11 FILING PARTY: PETITIONER

Download

Power of Attorney - '701 - Sandisk NOTICE

2025-03-11 FILING PARTY: PETITIONER

Download

3001

E-mail authorizing update to mandatory notices Exhibit

2025-03-06 FILING PARTY: BOARD

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Western Digital Technologies, Inc. vs. LONGITUDE LICENSING LTD.,

Proceeding Overview

Parties & Counsel

Petitioner

Western Digital Technologies, Inc.

Represented By

Patent Owner / Respondent

LONGITUDE LICENSING LTD.,

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Fed. Cir. Order Dismissing Appeal OTHER

Petitioners' Notice of Appeal NOTICE

Petitioners' Updated Mandatory Notices NOTICE

Power of Attorney - '701 - Sandisk NOTICE

E-mail authorizing update to mandatory notices Exhibit

Final Written Decision: original FINAL

Other: Hearing transcript OTHER

Exhibit 2006 Exhibit

PATENT OWNER’S UPDATED EXHIBIT LIST NOTICE

EX1032 - Petitioner's Oral Argument Demonstratives - Longitude 701 Exhibit

Petitioner's Updated Exhibit List NOTICE

LEAP Practitioner Request and Verification Form (Petitioner) NOTICE

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

PO Sur-Reply to Pet Reply OTHER

JOINT STIPULATION TO MODIFY DUE DATE 3 OTHER

EX1026 - Palumbo - Power-Consumption Optimization Exhibit

EX1028 - DC Converters (Integrated Switch) _ Selection Guides Exhibit

EX1025 - US7170197 - Lopata Exhibit

EX1029 - Dr. Bruce Jacob deposition transcript Exhibit

Petitioner's Reply REPLYTOOPP

EX1027 - TI-Guide Exhibit

EX1030 - US6927441 - Pappalardo Exhibit

EX1031 - US 6,060,942 A - Oh Exhibit

Petitioner's Updated Mandatory Notices NOTICE

Petitioner's Notice of Deposition for Dr. Bruce L. Jacob NOTICE

Exhibit 2004 Exhibit

PATENT OWNER'S RESPONSE RESPONSE

Exhibit 2005 Exhibit

Exhibit 2003 Exhibit

JOINT STIPULATION TO MODIFY DUE DATES 1 AND 2 OTHER

JOINT STIPULATION TO MODIFY DUE DATES 1 AND 2 OTHER

PATENT OWNER’S NOTICE OF DEPOSITION OF DR. HARVEY J. STIEGLER NOTICE

PATENT OWNER'S UPDATED MANDATORY NOTICES NOTICE

PATENT OWNER'S UPDATED POWER OF ATTORNEY NOTICE

Order Conditionally Granting Patent Owner’s Motions for Pro Hac Vice Admission of Brian D. Ledahl and Paul A. Kroeger ORDER

Order: CORRECTED SCHEDULING ORDER ORDER

PATENT OWNER’S MOTION FOR PRO HAC VICE ADMISSION FOR BRIAN D. LEDAHL MOTION

DECLARATION OF PAUL A. KROEGER IN SUPPORT OF MOTION FOR PRO HAC VICE ADMISSION Exhibit

DECLARATION OF BRIAN D. LEDAHL IN SUPPORT OF MOTION FOR PRO HAC VICE ADMISSION Exhibit

PATENT OWNER’S MOTION FOR PRO HAC VICE ADMISSION FOR PAUL A. KROEGER MOTION

Order: Scheduling Order ORDER

Decision Granting Institution of Inter Partes Review DECISION

PATENT OWNER'S PRELIMINARY RESPONSE POPR

Notice : Mandatory Notice NOTICE

Notice : Power of Attorney NOTICE

Notice: Notice filing date accorded NOTICE

EX1014 - U.S. Patent No. 7,579,902 to Frulio et al. Exhibit

EX1021 - U.S. Patent No. 6,034,539 to Hwang Exhibit

Petitioner's Power of Attorney - WD - '701 NOTICE

EX1024 - Declaration of Dr. Sylvia D. Hall-Ellis Exhibit

EX1003 - Declaration of Dr. Harvey J. Stiegler Exhibit

EX1008 - Charge Pump Circuit Design, Pan et al., 1st Edition, 2006 Exhibit

EX1017 - U.S. Patent No. 6,157,242 to Fukui Exhibit

EX1015 - U.S. Patent No. 7,477,093 to Al-Shamma et al. Exhibit

EX1022 - U.S. App. Pub. No. 20030067063A1 to Muff et al. Exhibit

EX1020 - Kang-Charge Pump Circuits - Low Area & High Power Efficiency Exhibit

EX1007 - Prosecution File History of Zhang (App. 10888667) Exhibit

EX1016 - U.S. Patent No. 7,046,076 to Daga et al. Exhibit

EX1006 - U.S. Patent No. 5,767,735 to Javanifard et al. Exhibit

EX1011 - Order Granting Western Digital’s Mt to Stay (Amazon) (05-16-23) Exhibit

EX1002 - Prosecution File History of the ’701 Patent Exhibit

EX1010 - Prosecution File History of Parent of ’701 patent (App. 13912845) Exhibit

EX1001 - U.S. Patent No. 9,207,701 to Hayashi et al. Exhibit