90/015,903Semiconductor Device with Improved Contact Structure and Method of Forming Same9,564,433Open

Status

Reexam - Request Ready for Ex Parte Action

Filed

Feb 6, 2026

Last Updated

Aug 18, 2026

Art Unit

3991

Requester Law Firm

Kirkland & Ellis LLP

Requested By

Third Party

Patent Owner(via USPTO assignment records)

Mosaid Technologies Inc.

Patent Owner Law Firm

Owner hasn't filed yet

Sector (CPC)

HElectrical & Electronic
H10Semiconductor Devices
H10DInorganic Semiconductor Devices

USPC

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

Reexam History (51 events)

Aug 18, 2026RXFWDXDate Forwarded to Examiner
Aug 15, 2026RXIDS.Information Disclosure Statement Filed
Aug 15, 2026RXC/SRCertificate of Service
Aug 15, 2026WIDSInformation Disclosure Statement (IDS) Filed
Aug 15, 2026WIDSInformation Disclosure Statement (IDS) Filed
Apr 22, 2026MREXORX - Mail Ex Parte Request for Reexamination Granted
Apr 13, 2026RXC/SRCertificate of Service
Apr 6, 2026RXLET.Miscellaneous Incoming Letter
Apr 2, 2026PA..Change in Power of Attorney (May Include Associate POA)
Mar 31, 2026RXLET.Miscellaneous Incoming Letter
Mar 31, 2026RXC/SRCertificate of Service
Mar 31, 2026RXPA..Change in Power of Attorney (May Include Associate POA)
Mar 24, 2026RXC/SRCertificate of Service
Mar 24, 2026RXPET.Receipt of Petition in a Reexam
Mar 6, 2026RXRLFReExam Litigation Found
Mar 6, 2026RXLITSRReexam Litigation Search Conducted
Feb 10, 2026MPENMail Pre-Exam Notice
Feb 10, 2026MRXNReexamination Formalities Notice Mailed
Feb 10, 2026MRXNReexamination Formalities Notice Mailed
Feb 10, 2026COMPApplication Is Now Complete
Feb 10, 2026RXDOCKReexam Assigned to Examiner for Determination
Feb 9, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Feb 9, 2026ROIPEApplication Return TO OIPE
Feb 9, 2026RXDOCKReexam Assigned to Examiner for Determination
Feb 9, 2026RXNREQAUNotice of assignment of reexamination request
Feb 9, 2026RXNREQFDNotice of reexamination request filing date
Feb 9, 2026WROIPEApplication Return from OIPE
Feb 6, 2026CLAIMClaim Preliminary Amendment
Feb 6, 2026RXC/SRCertificate of Service
Feb 6, 2026RXOSUCOrig Req Receipt Corrected
Feb 5, 2026MRIFDRX - Mail Incomplete Ex Parte Reexam Request (Filing Date vacated)
Feb 2, 2026COMPApplication Is Now Complete
Feb 2, 2026W/OAPre-Exam Office Action Withdrawn
Feb 2, 2026DOCKCase Docketed to Examiner in GAU
Feb 2, 2026MRXNReexamination Formalities Notice Mailed
Feb 2, 2026MRXNReexamination Formalities Notice Mailed
Jan 31, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Jan 31, 2026FTFIFITF set to NO - revise initial setting
Jan 30, 2026RXNREQAUNotice of assignment of reexamination request
Jan 30, 2026RXNREQFDNotice of reexamination request filing date
Jan 30, 2026RXC.ADRReexam - Correspondence Address Change for Third Party Requester
Jan 29, 2026PRXRParalegal Reexam Review Complete
Jan 27, 2026RXTTLRPTTitle Report
Jan 27, 2026RXLITSRReexam Litigation Search Conducted
Jan 27, 2026RXRLFReExam Litigation Found
Jan 27, 2026RXLITSRReexam Litigation Search Conducted
Jan 27, 2026RXRLFReExam Litigation Found
Jan 26, 2026BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
Jan 26, 2026RXOSUB.RReexamination requested by third party requester
Jan 26, 2026RXIDS.RReexam - Information Disclosure Statement Filed by Third Party Requester
Jan 26, 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
Feb 7, 2017
3.5-yr
Aug 7, 2020
Paid Jul 23, 2020
7.5-yr
Aug 7, 2024
Paid Jul 24, 2024
11.5-yr
Aug 7, 2028
Expiry
Feb 9, 2035

Entity Status

Large Entity

Expires

Feb 9, 2035 (8.9 yr remaining)

Assignments

2016201720182019202020212022FiledJHON-JHY LIAWTAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.MOSAID TECHNOLOGIES INC.
AssignmentReel/Frame: 036453/0975Recorded: Aug 29, 2015

From

JHON-JHY LIAWInventor
Jul 30, 2015
→

To

TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.

AssignmentReel/Frame: 060024/0288Recorded: May 26, 2022

From

TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Apr 28, 2022
→

To

MOSAID TECHNOLOGIES INC.