90/015,892MEMORY FORMATION WITH REDUCED METALLIZATION LAYERS7,514,757Open

Status

Reexam - Request Ready for Ex Parte Action

Filed

Jan 22, 2026

Last Updated

Aug 18, 2026

Art Unit

3991

Requester

Unknown

Requester Law Firm

Kirkland & Ellis, LLP

Requested By

Third Party

Sector (CPC)

HElectrical & Electronic
H10Semiconductor Devices
H10BElectronic Memory Devices

USPC

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

Reexam History (38 events)

Aug 18, 2026RXFWDXDate Forwarded to Examiner
Aug 15, 2026WIDSInformation Disclosure Statement (IDS) Filed
Aug 15, 2026WIDSInformation Disclosure Statement (IDS) Filed
Aug 15, 2026RXIDS.Information Disclosure Statement Filed
Aug 15, 2026RXC/SRCertificate of Service
Apr 14, 2026MREXORX - Mail Ex Parte Request for Reexamination Granted
Apr 6, 2026RXLET.Miscellaneous Incoming Letter
Apr 6, 2026RXC/SRCertificate of Service
Apr 6, 2026RXC/SRCertificate of Service
Apr 2, 2026PA..Change in Power of Attorney (May Include Associate POA)
Apr 1, 2026RXC.ADCorrespondence Address Change
Mar 31, 2026RXPA..Change in Power of Attorney (May Include Associate POA)
Mar 31, 2026RXLET.Miscellaneous Incoming Letter
Mar 31, 2026RXC/SRCertificate of Service
Mar 24, 2026RXPET.Receipt of Petition in a Reexam
Mar 24, 2026RXC/SRCertificate of Service
Mar 6, 2026RXRLFReExam Litigation Found
Mar 6, 2026RXLITSRReexam Litigation Search Conducted
Jan 30, 2026MRXNReexamination Formalities Notice Mailed
Jan 30, 2026MRXNReexamination Formalities Notice Mailed
Jan 30, 2026COMPApplication Is Now Complete
Jan 29, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Jan 29, 2026RXNREQFDNotice of reexamination request filing date
Jan 29, 2026RXNREQAUNotice of assignment of reexamination request
Jan 29, 2026FTFIFITF set to NO - revise initial setting
Jan 29, 2026DOCKCase Docketed to Examiner in GAU
Jan 26, 2026RXC.ADRReexam - Correspondence Address Change for Third Party Requester
Jan 22, 2026RXOSUCOrig Req Receipt Corrected
Jan 22, 2026RXOSUB.RReexamination requested by third party requester
Jan 22, 2026RXC/SRCertificate of Service
Jan 22, 2026PRXRParalegal Reexam Review Complete
Jan 20, 2026RXTTLRPTTitle Report
Jan 20, 2026RXRLFReExam Litigation Found
Jan 20, 2026RXLITSRReexam Litigation Search Conducted
Jan 16, 2026RXPA..RReexam - Change in Power of Attorney (May Include Associate POA) for Third Party Requester
Jan 16, 2026RXOSUB.RReexamination requested by third party requester
Jan 16, 2026RXOSUBReceipt of Original Ex Parte Reexam Request
Jan 16, 2026BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)

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
Apr 7, 2009
3.5-yr
Oct 7, 2012
7.5-yr
Oct 7, 2016
11.5-yr
Oct 7, 2020
Paid Sep 30, 2020
Expiry
Jan 10, 2027

Entity Status

Large Entity

Expires

Jan 10, 2027 (0.8 yr remaining)

Term Adjustment

+132 days (~0.4 yr)

Assignments

2007200820092010201120122013201420152016201720182019202020212022FiledJHON-JHY LIAWTAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.MOSAID TECHNOLOGIES INC.
AssignmentReel/Frame: 018292/0634Recorded: Sep 22, 2006

From

JHON-JHY LIAWInventor
Aug 31, 2006

To

TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.

AssignmentReel/Frame: 060024/0698Recorded: May 26, 2022

From

TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
May 3, 2022

To

MOSAID TECHNOLOGIES INC.