Status
Reexam - Request Ready for Ex Parte Action
Filed
May 8, 2026
Pre-Order Paper
Filed Jun 5, 2026
Requester reply Jun 22, 2026
Last Updated
Sep 21, 2026
Examiner
Art Unit
Requester
Not named (filed by counsel)
Requester Law Firm
Requested By
Third Party
Patent Owner(via USPTO assignment records)
Patent Owner Law Firm
Owner hasn't filed yet
Reexam History (27 events)
Sep 21, 2026RXFWDXDate Forwarded to Examiner
Sep 21, 2026RXC/SRCertificate of Service
Sep 21, 2026WIDSInformation Disclosure Statement (IDS) Filed
Jul 14, 2026MREXORX - Mail Ex Parte Request for Reexamination Granted
Jul 10, 2026RXPTDIReexam Petition Decision - Dismissed
Jul 10, 2026MRTDIRX - Mail Petition Decision - Dismissed
Jun 22, 2026RXC/SRCertificate of Service
Jun 22, 2026RXC/SRCertificate of Service
Jun 22, 2026RXPET.Receipt of Petition in a Reexam
May 26, 2026DOCKCase Docketed to Examiner in GAU
May 22, 2026MRXNReexamination Formalities Notice Mailed
May 22, 2026MRXNReexamination Formalities Notice Mailed
May 22, 2026COMPApplication Is Now Complete
May 21, 2026RXNREQFDNotice of reexamination request filing date
May 21, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
May 21, 2026RXTTLRPTTitle Report
May 21, 2026RXNREQAUNotice of assignment of reexamination request
May 11, 2026RXLITSRReexam Litigation Search Conducted
May 11, 2026RXRLFReExam Litigation Found
May 11, 2026PRXRParalegal Reexam Review Complete
May 11, 2026FTFIFITF set to NO - revise initial setting
May 8, 2026BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
May 8, 2026RXC/SRCertificate of Service
May 8, 2026RXRLFReExam Litigation Found
May 8, 2026RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
May 8, 2026RXOSUBReceipt of Original Ex Parte Reexam Request
May 8, 2026RXOSUB.RReexamination requested by third party requester
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
Jun 11, 2013
3.5-yr
Dec 11, 2016
7.5-yr
Dec 11, 2020
Paid Sep 23, 2020
11.5-yr
Dec 11, 2024
Paid Nov 21, 2024
Expiry
May 22, 2031
Entity Status
Large Entity
Expires
May 22, 2031 (5 yr remaining)
Term Adjustment
+520 days (~1.4 yr)
Assignments
AssignmentReel/Frame: 023676/0824Recorded: Dec 18, 2009
From
TODD R. FARMERInventor
Dec 17, 2009
LUKA G. KORZENIOWSKIInventor
Dec 9, 2009
CHRISTIAN NICHOLSONInventor
Nov 30, 2009
MARK A. SPORERInventor
Nov 30, 2009
BRIAN F. TAGGARTInventor
Nov 30, 2009
→
To
CATERPILLAR INC.