90/015,827Accelerated Verification of Digital Signatures and Public Keys10,284,370Open

Status

Non-Final Action Mailed

Filed

Jan 6, 2026

Last Updated

Jul 7, 2026

Art Unit

3992

Sector (CPC)

HElectrical & Electronic
H04Telecommunications
H04LTransmission of Digital Information

USPC

713Electrical Computers And Digital Processing Systems: Support

Reexam History (28 events)

Jul 7, 2026MR.NFRX - Mail Reexam Non-Final Action
May 20, 2026RXPTDIReexam Petition Decision - Dismissed
May 20, 2026RXFWDXDate Forwarded to Examiner
May 20, 2026MRTDIRX - Mail Petition Decision - Dismissed
May 1, 2026RXOPPPETReexam - Opposition filed in response to petition
May 1, 2026RXC/SRCertificate of Service
Apr 17, 2026RXPET.Receipt of Petition in a Reexam
Apr 17, 2026RXC/SRCertificate of Service
Feb 18, 2026MREXORX - Mail Ex Parte Request for Reexamination Granted
Jan 16, 2026PA..Change in Power of Attorney (May Include Associate POA)
Jan 16, 2026MRXNReexamination Formalities Notice Mailed
Jan 16, 2026MRXNReexamination Formalities Notice Mailed
Jan 16, 2026DOCKCase Docketed to Examiner in GAU
Jan 16, 2026COMPApplication Is Now Complete
Jan 15, 2026RXTTLRPTTitle Report
Jan 15, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Jan 15, 2026RXNREQFDNotice of reexamination request filing date
Jan 15, 2026RXNREQAUNotice of assignment of reexamination request
Jan 6, 2026RXC/SRCertificate of Service
Jan 4, 2026RXRLFReExam Litigation Found
Jan 4, 2026RXLITSRReexam Litigation Search Conducted
Jan 4, 2026PRXRParalegal Reexam Review Complete
Jan 4, 2026FTFIFITF set to NO - revise initial setting
Jan 2, 2026RXOSUBReceipt of Original Ex Parte Reexam Request
Jan 2, 2026BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
Dec 23, 2025WIDSInformation Disclosure Statement (IDS) Filed
Dec 23, 2025RXOSUB.RReexamination requested by third party requester
Dec 23, 2025RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester

Prosecution, PTAB & CAFC

PTAB Proceedings (IPR, PGR, CBM, DER)

None found

Federal Circuit (CAFC)

None found

Terminal Disclaimer

Filed — ApprovedOct 20, 2016

Prosecution History

DateCodeDescription
Oct 20, 2016P574PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED
Oct 20, 2016DISTTerminal Disclaimer Filed

Maintenance Fees

Grant
May 7, 2019
3.5-yr
Nov 7, 2022
Paid Nov 7, 2022
7.5-yr
Nov 7, 2026
11.5-yr
Nov 7, 2030
Expiry
Aug 10, 2034

Entity Status

Large Entity

Expires

Aug 10, 2034 (8.4 yr remaining)

Term Adjustment

+44 days (~0.1 yr)

Assignments

20072008200920102011201220132014201520162017201820192020202120222023FiledADRIAN ANTIPADANIEL R. BROWNMARINUS STRUIKSCOTT A. VANSTONEROBERT J. LAMBERTROBERT P. GALLANTCERTICOM CORP.BLACKBERRY LIMITEDOT PATENT ESCROW, LLCOT PATENT ESCROW, LLCMALIKIE INNOVATIONS LIMITEDMALIKIE INNOVATIONS LIMITEDMALIKIE INNOVATIONS LIMITED
AssignmentReel/Frame: 033602/0816Recorded: Aug 25, 2014

From

ADRIAN ANTIPAInventor
Apr 4, 2006
DANIEL R. BROWNInventor
Apr 4, 2006
ROBERT P. GALLANTInventor
Jun 8, 2006
ROBERT J. LAMBERTInventor
Apr 13, 2006
MARINUS STRUIKInventor
Apr 4, 2006
SCOTT A. VANSTONEInventor
Apr 5, 2006

To

CERTICOM CORP.

AssignmentReel/Frame: 050610/0937Recorded: Oct 2, 2019

From

CERTICOM CORP.
Sep 30, 2019

To

BLACKBERRY LIMITED

AssignmentReel/Frame: 064806/0669Recorded: Sep 5, 2023

From

BLACKBERRY LIMITED
Mar 20, 2023

To

OT PATENT ESCROW, LLC

AssignmentReel/Frame: 063471/0474Recorded: Apr 27, 2023

From

BLACKBERRY LIMITED
Mar 20, 2023

To

OT PATENT ESCROW, LLC

AssignmentReel/Frame: 064807/0001Recorded: Sep 5, 2023

From

OT PATENT ESCROW, LLC
May 11, 2023

To

MALIKIE INNOVATIONS LIMITED

Nunc Pro TuncReel/Frame: 064066/0001Recorded: Jun 19, 2023

From

BLACKBERRY LIMITED
May 11, 2023

To

MALIKIE INNOVATIONS LIMITED

Nunc Pro TuncReel/Frame: 064015/0001Recorded: Jun 16, 2023

From

OT PATENT ESCROW, LLC
May 11, 2023

To

MALIKIE INNOVATIONS LIMITED