Micron Technology, Inc. et al. vs. Yangtze Memory Technologies Company, Ltd.

Explore the PTAB proceeding IPR2025-00191 filed by Micron Technology, Inc. et al. on 2024-12-02. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-00191

Filing Date

2024-12-02

Accorded Filing Date

2024-12-02

Institution Decision Date

2025-07-25

Last Modified Date

2026-09-01

Proceeding Type

IPR

Termination Date

2026-07-06

Trial Status

Final Written Decision - Appealed

Parties & Counsel

Petitioner

Micron Technology, Inc. et al.

Represented By

Lang, Jeremyet al

Patent Owner / Respondent

Yangtze Memory Technologies Company, Ltd.

Represented By

Osman, Ingeet 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 17100847

Respondent Patent Number 11581322

External Links

Espacenet

Google Patents

Respondent Inventor Mei Lan Guo et al

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

Address and Attorney/Agent Information

14 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Bayes PLLC

Customer Number 153988

Address 8260 Greensboro Drive, Suite 625, McLean, VA, 22102, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
34528	Ben Hsing	703-995-9887
34752	Raymond Werner	202-714-4422
62003	Cheri Huang	703-995-9887
62107	Anthony Canning	415-805-7942
66041	Zhiwei Zou	703-995-9887
69583	Jiayu Song	703-995-9887
69585	Gang Ye	703-995-9887
73999	Wenchong Shu	201-565-5739
74408	Su Xu	503-998-7594
76865	Andrew Ramos	703-995-9887
76888	Kris Teng	973-539-5330
77158	Zhiming Deng	703-995-9887
79975	Ziyou Zhou	434-832-9027
84246	Ruiqin Wang	571-577-2392

Proceeding Documents

200

Petitioner's Amended Certificate of Service and Filing OTHER

2026-09-01 FILING PARTY: PETITIONER

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Patent Owner's Notice of Cross-Appeal NOTICE

2026-08-25 FILING PARTY: PATENT OWNER

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Petitioner's Notice of Appeal NOTICE

2026-08-24 FILING PARTY: PETITIONER

Download

ORDER Expunging Sealed Information after Termination of Proceedings 37 C.F.R. § 42.56 ORDER

2026-07-28 FILING PARTY: BOARD

Download

Joint Motion to Expunge Confidential Information from the Record MOTION

2026-07-16 FILING PARTY: PETITIONER

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Micron Technology, Inc. et al. vs. Yangtze Memory Technologies Company, Ltd.

Proceeding Overview

Parties & Counsel

Petitioner

Micron Technology, Inc. et al.

Represented By

Patent Owner / Respondent

Yangtze Memory Technologies Company, Ltd.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Petitioner's Amended Certificate of Service and Filing OTHER

Patent Owner's Notice of Cross-Appeal NOTICE

Petitioner's Notice of Appeal NOTICE

ORDER Expunging Sealed Information after Termination of Proceedings 37 C.F.R. § 42.56 ORDER

Joint Motion to Expunge Confidential Information from the Record MOTION

Final Written Decision: original FINAL

Other: Hearing transcript OTHER

Patent Owner's Updated Exhibit List NOTICE

Ex. 1119 (Hearing Demonstratives) Exhibit

Ex. 2041 - Patent Owner's Demonstratives Exhibit

Petitioner's Updated Exhibit List NOTICE

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

Patent Owner's Sur-Reply OTHER

Petitioner's Request for Oral Argument OTHER

Patent Owner's Notice of Cancellation of the Deposition of Jack C. Lee, Ph.D. NOTICE

Patent Owner's Request for Oral Argument OTHER

Patent Owner's Notice of Deposition of Jack C. Lee, Ph.D. NOTICE

Patent Owner's Unopposed Motion to Withdraw Backup Counsel MOTION

Patent Owner's Objections to Petitioner's Evidence OTHER

Ex. 1106 Exhibit

Ex. 1108 Exhibit

Ex. 1110 Exhibit

Ex. 1115 Exhibit

Ex. 1107 Exhibit

Ex. 1116 Exhibit

Ex. 1112 Exhibit

Ex. 1114 Exhibit

Ex. 1109 Exhibit

Ex. 1105 Exhibit

Ex. 1113 Exhibit

Petitioner's Reply Brief RESPONSE

Ex. 1111 Exhibit

Patent Owner's Updated Mandatory Notices NOTICE

Patent Owner's Updated Power of Attorney NOTICE

Patent Owner's Updated Mandatory Notices NOTICE

ORDER Granting Patent Owner’s Motions for Pro Hac Vice Admission of Robert B. Dunteman 37 C.F.R. § 42.10 ORDER

Petitioner's Notice of Cross-Examination by Deposition of Stephen Campbell NOTICE

Petitioner's Objections to Patent Owner's Exhibit 2040, Declaration of Robert B. Dunteman in Response to Petitioner's Objections to Evidence OTHER

Patent Owner's Updated Mandatory Notices NOTICE

Patent Owner's Unopposed Motion for Pro Hac Vice Admission of Robert B. Dunteman MOTION

Ex. 2039 - R. Dunteman Decl iso PHV Motion Exhibit

Patent Owner's Updated Power of Attorney NOTICE

Petitioner's Objections to Patent Owner's POR Evidence OTHER

Patent Owner's Updated Mandatory Notices NOTICE

Ex. 2023 - Singh, Overcoming Challenges in 3D NAND Volume Manufacturing (July 2017) Exhibit

Ex. 2025 - Lapedus, What's Next for NAND (5.19.2016) Exhibit

Ex. 2029 - Lapedus, 3D NAND's Vertical Scaling Race (12.17.2020) Exhibit

Patent Owner's Response RESPONSE

Ex. 2034 - Yang, Creating Higher Density 3D NAND Structures (2.21.2019) Exhibit

Ex. 2036 - Entegris White Paper - Considerations for Improving 3D NAND Performance Reliability & Yield Exhibit

Ex. 2021 Declaration of Stephen Campbell in Support of Patent Owners Response Exhibit

Ex. 2033 - Lapedus, How to Make 3D NAND (5.23.2016) Exhibit

Ex. 2031 - Lapedus, NAND Market Hits Speed Bump (6.21.2017) Exhibit

Ex. 2024 - ThermoScientific White Paper - The Challenge of Measuring Buried Exhibit

Ex. 2028 - Lapedus, 3D NAND Metrology Challenges Growing (4.19.2019) Exhibit

Ex. 2027 - Shirey, Digging Deep Into High Aspect Ratio . . . (10.18.2018) Exhibit

Ex. 2030 - Yu, Tech Brief Memory “Grows Up” with 3D NAND (2016) Exhibit

Ex. 2035 - Yoo, Highly Selective Etching of SiNx Over SiO2 Using ClF3-Cl2 Remote Plasma (2023) Exhibit

Ex. 2022 - Deposition of Jack Lee (254 Patent) (IPR2025-00034) (7.3.2025) Exhibit

Ex. 2026 - Lapedus, 3D NAND Flash Wars Begin (8.20.2018) Exhibit

Ex. 2038 - Deposition of Jack Lee (10.23.2025) Exhibit

Ex. 2032 - Lapedus, 3D NAND Race Faces Huge Tech And Cost Challenges (5.23.2019) Exhibit

Patent Owner's Updated Mandatory Notices NOTICE

Patent Owner's Updated Power of Attorney NOTICE

Joint Stipulation to Extend Due Dates 1-3 OTHER