Sandisk Technologies, Inc. et al. vs. Longitude Flash Memory Solutions Ltd. et al.

Explore the PTAB proceeding IPR2025-01283 filed by Sandisk Technologies, Inc. et al. on 2025-10-14. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-01283

Filing Date

2025-10-14

Accorded Filing Date

2025-10-14

Institution Decision Date

—

Last Modified Date

2026-02-20

Proceeding Type

IPR

Termination Date

2026-02-20

Trial Status

Terminated-Settled

Parties & Counsel

Petitioner

Sandisk Technologies, Inc. et al.

Represented By

Batts, Harperet al

Patent Owner / Respondent

Longitude Flash Memory Solutions Ltd. et al.

Represented By

Rubin, Neilet 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 15335180

Respondent Patent Number 9929240

External Links

Espacenet

Google Patents

Respondent Inventor Igor Polishchuk et al

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

Address and Attorney/Agent Information

32 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Cypress Semiconductor Corporation - Cypress Semiconductor Corporation

Customer Number 60909

Address 198 Champion Court, San Jose, CA, 95134, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
35119	Scott Diring	608-772-0556
36771	Timothy Croll	408-545-6942
37923	Bradley Sako	925-344-5304
38321	Eric Stephenson	512-439-5093
38431	Steven Dicke	612-573-2002
41236	Daniel Ovanezian	408-341-3040
42943	William Nuttle	650-207-3418
44629	William Cooper	216-654-0090
45401	Derek Berger	498-923-426373
47423	Mark Bilak	919-948-3390
50485	Mark Peterson	--
56181	Stoycho Draganoff	408-545-6903
56893	Andy Chan	669-308-7995
57380	David Toma	973-597-2500
60519	Kerry Liang	650-468-1401
60793	Kevin Grange	650-433-5748
60870	Daniel Tate	330-571-0999
64373	Steven Chen	714-557-3800
64577	Ryan Seguine	425-787-4400
64944	Paul Krueger	650-433-5722
65809	Christopher Jordan	510-757-6105
65848	Ali Assar	216-654-0090
69034	Michael Campolongo	973-597-2420
69251	Kin Hung Lai	408-545-6950
71853	Tri Dang	714-557-3800
72151	Steven Tam	650-433-5612
72213	Nirav Thakor	650-699-6750
76392	Vincent Look	424-369-2071
76955	Brandon Massengill	919-755-2177
77636	Eugene Mishchenko	650-433-5604
78639	Blake Holt	858-847-6700
82090	Jordyn Robinson	801-304-4685

Proceeding Documents

Termination Decision: Pre-DI settlement TERMINATE

2026-02-20 FILING PARTY: BOARD

Download

3101

Email Correspondence Exhibit

2026-01-21 FILING PARTY: BOARD

Download

1073

Stipulation of Dismissal in IP Value Management, Inc., et al. v. Sandisk Corp., et al., 8_25-CV-00119-MWF(DFMx) (C.D. Cal.) Exhibit

2026-01-21 FILING PARTY: PETITIONER

Download

Joint Motion to Dismiss Terminate IPR2025-01283 MOTION

2026-01-21 FILING PARTY: PETITIONER

Download

Joint Request to Treat Settlement as Business Confidential MOTION

2026-01-21 FILING PARTY: PETITIONER

Download

Sandisk Technologies, Inc. et al. vs. Longitude Flash Memory Solutions Ltd. et al.

Proceeding Overview

Parties & Counsel

Petitioner

Sandisk Technologies, Inc. et al.

Represented By

Patent Owner / Respondent

Longitude Flash Memory Solutions Ltd. et al.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Termination Decision: Pre-DI settlement TERMINATE

Email Correspondence Exhibit

Stipulation of Dismissal in IP Value Management, Inc., et al. v. Sandisk Corp., et al., 8_25-CV-00119-MWF(DFMx) (C.D. Cal.) Exhibit

Joint Motion to Dismiss Terminate IPR2025-01283 MOTION

Joint Request to Treat Settlement as Business Confidential MOTION

Stipulation of Dismissal in Sandisk Corporation v. IP Value Management, Inc., et al., 5_25-CV-02389-PCP (N.D. Cal.) Exhibit

Complaint, Sandisk Corp. v. IPValue Management, Inc., et al., 5:25-cv-02389 (N.D. Cal.), March 7, 2025 Exhibit

Order, Sandisk Corp. v. IPValue Management, Inc., et al., 5:25-cv-02389 (N.D. Cal.), Oct. 20, 2025 Exhibit

Patent Owner's Request for Discretionary Denial of Institution RESPONSE

IPValue's and Longitude Flash Memory Solutions's Disclosure of Asserted Claims and Infringement Contentions Exhibit

Invalidity Contentions, Sandisk Corp. v. IPValue Manage-ment, Inc., et al., 5:25-cv-02389 (N.D. Cal.), Nov. 14, 2025 Exhibit

Joint Stipulation and Proposed Order to Modify Case Man-agement Order, as Modified Exhibit

Plaintiff's Stipulation Regarding Invalidity Contentions Exhibit

Order Denying Motion to Dismiss Exhibit

Order on Discovery Dispute, Sandisk Corp. v. IPValue Man-agement, Inc., et al., 5:25-cv-02389 (N.D. Cal.), Sept. 29, 2025 Exhibit

Notice: Power of Attorney NOTICE

Notice: Mandatory Notice NOTICE

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

U.S. Patent Application Publication No. 2006-0118858 A1 to Jeon, et al. Exhibit

U.S. Patent Application Publication No. 2009-0179253 A1 to Levy, et al. Exhibit

U.S. Patent Application Publication No. 20060008959A1 to Hagermeyer et al. Exhibit

U.S. Patent Application Publication No. 2011-0316064 A1 to Kim, et al. Exhibit

U.S. Patent Application Publication No. 2006-0065919 A1 to Fujiwara Exhibit

U.S. Patent No. 5,998,826 to Hung et al. Exhibit

Lukasiask and Jakubowski Article, History of Semiconductors Exhibit

Petition PETITION

Prosecution File History for the ’537 patent Exhibit

U.S. Patent Application Publication No. 2012-0068255 A1 to Lee, et al. Exhibit

U.S. Patent Application Publication No. 2008-0128790 to Jung Exhibit

U.S. Patent Application Publication No. 2005-0006696 A1 to Noguchi, et al. Exhibit

Sze, Physics of Semiconductor Devices, Third Edition Exhibit

U.S. Patent Application Publication No. 2006-0198189 A1 to Lue, et al. Exhibit

Arreghini, IEEE Transactions on Electron Devices Article Exhibit

U.S. Patent No. 9,929,240 to Polishchuk et al. Exhibit

Toshiba, Toshiba Develops New NAND Flash Technology Exhibit

U.S. Patent Application Publication No. 20090268522A1 to Maejima Exhibit

U.S. Patent Application Publication No. 2009-0059676 A1 to Lai, et al. Exhibit

Certified Prosecution File History for the '240 Patent - Part 3 Exhibit

Excerpts from New Oxford American Dictionary (3rd Ed. 2010) Exhibit

U.S. Patent Application Publication No. 2012-0068247 A1 to Lee, et al. Exhibit

Prosecution File History for the ’374 patent Exhibit

U.S. Patent No. 6,897,533 to Yang et al. Exhibit

U.S. Patent No. 6,912,163 to Zheng et al. Exhibit

U.S. Patent Application Publication No. 20100019312A1 to Sekine, et al. Exhibit

Tanaka, Bit Cost Scalable Technology Paper Exhibit

U.S. Patent Application Publication No. 2009-0026460 A1 to Ou et al. Exhibit

U.S. Patent Application Publication No. 20080272424A1 to Kim et al. Exhibit

U.S. Patent Application Publication No. 2013-0270625 A1 to Jang, et al. Exhibit

Kim, A Comparison of N+ Type and P+ Type Polysilicon Gate, 2007 Article Exhibit

U.S. Patent Application Publication No. 2012-0299086 A1 to Lee, et al. Exhibit

Prosecution File History for the ’434 patent Exhibit

European Patent Application No. EP0810667A2 by Hyundai Exhibit

Prosecution File History for the '336 patent Exhibit

U.S. Patent Application Publication No. 2011-0281429 to Ganguly, et al. Exhibit

IEEE, Declaration of Gordon MacPherson Exhibit

Korean Patent Application Publication No. 10-2011-0118961 to Lee, et al. Exhibit

Lai, A Multi-Layer Stackable Thin-Film Transistor (TFT) NAND-Type Flash Mem Exhibit

Declaration of June Munford - Part 1 Exhibit

U.S. Patent Application Publication No.20070029625A1 to Lue et al. Exhibit

Certified Prosecution File History for the '240 Patent - Part 1 Exhibit

U.S. Patent Application Publication No. 2005-0237809 A1 to Shih, et al. Exhibit

Declaration of June Munford - Part 2 Exhibit

Zhou, VDNROM Paper Exhibit

Excerpts from Merriam-Webster's Collegiate Dictionary (11th Ed. 2003) Exhibit

Declaration of Jack C. Lee Exhibit