90/016,334FIN FIELD EFFECT TRANSISTOR8,809,940Open

Status

Determination - Reexamination Ordered

Filed

May 22, 2026

Last Updated

Jul 21, 2026

Art Unit

3991

Requester

Unknown

Requester Law Firm

Kirkland & Ellis, LLP

Requested By

Third Party

Patent OwnerInferred

Mosaid Technologies Inc.

Sector (CPC)

HElectrical & Electronic
H10Semiconductor Devices
H10DInorganic Semiconductor Devices

USPC

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

Reexam History (21 events)

Jul 21, 2026MREXORX - Mail Ex Parte Request for Reexamination Granted
Jun 18, 2026PA..Change in Power of Attorney (May Include Associate POA)
Jun 15, 2026DOCKCase Docketed to Examiner in GAU
Jun 9, 2026COMPApplication Is Now Complete
Jun 9, 2026MRXNReexamination Formalities Notice Mailed
Jun 9, 2026MRXNReexamination Formalities Notice Mailed
Jun 8, 2026RXNREQAUNotice of assignment of reexamination request
Jun 8, 2026RXNREQFDNotice of reexamination request filing date
Jun 8, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Jun 8, 2026RXTTLRPTTitle Report
May 26, 2026PRIRParalegal Reissue Review Complete
May 26, 2026RXRLFReExam Litigation Found
May 26, 2026RXLITSRReexam Litigation Search Conducted
May 26, 2026FTFIFITF set to NO - revise initial setting
May 26, 2026PRXRParalegal Reexam Review Complete
May 22, 2026RXC/SRCertificate of Service
May 22, 2026RXOSUBReceipt of Original Ex Parte Reexam Request
May 22, 2026RXOSUB.RReexamination requested by third party requester
May 22, 2026RXIDS.RReexam - Information Disclosure Statement Filed by Third Party Requester
May 22, 2026RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
May 22, 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
Aug 19, 2014
3.5-yr
Feb 19, 2018
Paid Feb 8, 2018
7.5-yr
Feb 19, 2022
Paid Feb 2, 2022
11.5-yr
Feb 19, 2026
Paid Feb 4, 2026
Expiry
Apr 9, 2033

Entity Status

Large Entity

Expires

Apr 9, 2033 (6.8 yr remaining)

Assignments

201120122013201420152016201720182019202020212022FiledHUNG-TA LINHUNG-MING CHENCHU-YUN FUSHIN-YEH HUANGSHU-TINE YANGTAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.MOSAID TECHNOLOGIES INC.
AssignmentReel/Frame: 030181/0481Recorded: Apr 9, 2013

From

HUNG-MING CHENInventor
Oct 13, 2010
CHU-YUN FUInventor
Oct 13, 2010
SHIN-YEH HUANGInventor
Oct 13, 2010
HUNG-TA LINInventor
Oct 12, 2010
SHU-TINE YANGInventor
Oct 13, 2010

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.