90/016,327BARRIER LAYERS FOR WORD LINE CONTACTS IN A THREE-DIMENSIONAL NAND MEMORY AND FABRICATION METHODS THEREOF12,094,767Open

Status

Determination - Reexamination Ordered

Filed

May 21, 2026

Last Updated

Aug 13, 2026

Art Unit

3991

Requester

Travis Jensen

Requested By

Third Party

P.O. Law Firm

W. Todd Baker

Sector (CPC)

HElectrical & Electronic
H01Electrical Components
H01LSemiconductor Devices

USPC

257Active Solid-State Devices (E.g., Transistors, Solid-State Diodes)

Reexam History (26 events)

Aug 13, 2026MREXORX - Mail Ex Parte Request for Reexamination Granted
Jul 22, 2026RXPTDIReexam Petition Decision - Dismissed
Jul 22, 2026MRTDIRX - Mail Petition Decision - Dismissed
Jul 15, 2026PA..Change in Power of Attorney (May Include Associate POA)
Jul 7, 2026RXC/SRCertificate of Service
Jul 7, 2026RXPET.Receipt of Petition in a Reexam
Jun 22, 2026RXC/SRCertificate of Service
Jun 9, 2026DOCKCase Docketed to Examiner in GAU
Jun 8, 2026MRXNReexamination Formalities Notice Mailed
Jun 8, 2026COMPApplication Is Now Complete
Jun 8, 2026MRXNReexamination Formalities Notice Mailed
Jun 5, 2026RXNREQAUNotice of assignment of reexamination request
Jun 5, 2026RXNREQFDNotice of reexamination request filing date
Jun 5, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Jun 5, 2026RXTTLRPTTitle Report
May 26, 2026RXRLFReExam Litigation Found
May 26, 2026PRXRParalegal Reexam Review Complete
May 26, 2026RXLITSRReexam Litigation Search Conducted
May 26, 2026FTFSFITF set to YES - revise initial setting
May 21, 2026RXOSUB.RReexamination requested by third party requester
May 21, 2026WIDSInformation Disclosure Statement (IDS) Filed
May 21, 2026RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
May 21, 2026BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
May 21, 2026RXIDS.RReexam - Information Disclosure Statement Filed by Third Party Requester
May 21, 2026RXPA..RReexam - Change in Power of Attorney (May Include Associate POA) for Third Party Requester
May 21, 2026RXOSUBReceipt of Original Ex Parte Reexam Request

Prosecution, PTAB & CAFC

PTAB Proceedings (IPR, PGR, CBM, DER)

None found

Federal Circuit (CAFC)

None found

Terminal Disclaimer

None found

Prosecution History

None found

Maintenance Fees

Grant
Sep 17, 2024
3.5-yr
Mar 17, 2028
7.5-yr
Mar 17, 2032
11.5-yr
Mar 17, 2036
Expiry
Jan 9, 2043

Entity Status

Large Entity

Expires

Jan 9, 2043 (16.6 yr remaining)

Term Adjustment

+354 days (~1.0 yr)

Assignments

Jan 2022Feb 2022FiledDI WANGLING XUZHONG ZHANGWENXI ZHOUYANGTZE MEMORY TECHNOLOGIES CO., LTD.
AssignmentReel/Frame: 058717/0817Recorded: Jan 21, 2022

From

DI WANGInventor
Jan 7, 2022
LING XUInventor
Jan 7, 2022
ZHONG ZHANGInventor
Jan 7, 2022
WENXI ZHOUInventor
Jan 7, 2022

To

YANGTZE MEMORY TECHNOLOGIES CO., LTD.