Status
Reexamination Certificate Issued
Requester
Requester Law Firm
Requested By
Third Party
Patent OwnerInferred
P.O. Law Firm
Reexam History (37 events)
Aug 27, 2026REEXInput Issue Number and Issue Date for Reexamination
Aug 10, 2026RXPUBSReexam Forwarded to Office of Publications
Jun 3, 2026MRNRCRX - Mail Notice of Intent to Issue a Reexam Certificate
May 14, 2026RXRLFReExam Litigation Found
May 14, 2026RXLITSRReexam Litigation Search Conducted
Apr 6, 2026RXC/SRCertificate of Service
Apr 6, 2026RXAF/DAffidavit(s), Declaration(s) and/or Exhibit(s) Filed
Apr 6, 2026RXAF/DAffidavit(s), Declaration(s) and/or Exhibit(s) Filed
Apr 6, 2026RXAF/DAffidavit(s), Declaration(s) and/or Exhibit(s) Filed
Apr 6, 2026RXA...Response after Non-Final Action
Feb 10, 2026MRXG.RX - Mail Extension of Time Period for Response Granted
Feb 9, 2026RXRQ/TRequest for Extension of Time
Feb 9, 2026RXC/SRCertificate of Service
Jan 6, 2026MR.NFRX - Mail Reexam Non-Final Action
Dec 15, 2025IDSCInformation Disclosure Statement considered
Dec 1, 2025WIDSInformation Disclosure Statement (IDS) Filed
Dec 1, 2025RXIDS.Information Disclosure Statement Filed
Dec 1, 2025RXC/SRCertificate of Service
Nov 28, 2025RXFWDXDate Forwarded to Examiner
Sep 26, 2025MREXORX - Mail Ex Parte Request for Reexamination Granted
Jul 9, 2025MRPWPRX - Mail Pilot Waiver Program - Ex Parte Interview Summary
Jul 3, 2025MRXNReexamination Formalities Notice Mailed
Jul 3, 2025MRXNReexamination Formalities Notice Mailed
Jul 3, 2025COMPApplication Is Now Complete
Jul 2, 2025RXRLFReExam Litigation Found
Jul 2, 2025RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Jul 2, 2025RXNREQFDNotice of reexamination request filing date
Jul 2, 2025RXNREQAUNotice of assignment of reexamination request
Jul 2, 2025RXLITSRReexam Litigation Search Conducted
Jul 2, 2025PRXRParalegal Reexam Review Complete
Jul 2, 2025FTFIFITF set to NO - revise initial setting
Jul 2, 2025DOCKCase Docketed to Examiner in GAU
Jul 1, 2025RXTTLRPTTitle Report
Jun 30, 2025RXOSUB.RReexamination requested by third party requester
Jun 30, 2025RXOSUBReceipt of Original Ex Parte Reexam Request
Jun 30, 2025RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
Jun 30, 2025BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
Prosecution, PTAB & CAFC
PTAB Proceedings (IPR, PGR, CBM, DER)
IPR2020-00691IPR — Institution Denied
Petitioner
Nitro Fluids, LLC
Petition Filed
Mar 9, 2020
Institution
Aug 25, 2020
Federal Circuit (CAFC)
None found
Terminal Disclaimer
Filed — ApprovedSep 20, 2017
Prosecution History
| Date | Code | Description |
|---|---|---|
| Sep 20, 2017 | P574 | PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED |
| Sep 20, 2017 | DIST | Terminal Disclaimer Filed |
Maintenance Fees
Grant
Oct 9, 2018
3.5-yr
Apr 9, 2022
Paid Mar 23, 2022
7.5-yr
Apr 9, 2026
Paid Mar 24, 2026
11.5-yr
Apr 9, 2030
Expiry
Dec 12, 2036
Entity Status
Large Entity
Expires
Dec 12, 2036 (10.7 yr remaining)
Assignments
None found