90/015,521SYSTEM AND METHOD PROVIDING STANDBY BYPASS FOR DOUBLE FAILURE PROTECTION IN MPLS NETWORK8,982,691Open

Status

Reexam Terminated - Notice of Intent to Issue a Reexamination Certificate Mailed

Filed

Sep 16, 2025

Last Updated

Aug 19, 2026

Art Unit

3992

Requester Law Firm

Haynes and Boone, LLP

Requested By

Third Party

Patent Owner Law Firm

Owner hasn't filed yet

Sector (CPC)

HElectrical & Electronic
H04Telecommunications
H04LTransmission of Digital Information

USPC

370Multiplex Communications

Reexam History (31 events)

Oct 6, 2026PA..Change in Power of Attorney (May Include Associate POA)
Aug 19, 2026MRNRCRX - Mail Notice of Intent to Issue a Reexam Certificate
Jun 23, 2026RXFWDXDate Forwarded to Examiner
Apr 22, 2026MR.NFRX - Mail Reexam Non-Final Action
Apr 9, 2026RXRLFReExam Litigation Found
Apr 9, 2026RXLITSRReexam Litigation Search Conducted
Feb 18, 2026RXFWDXDate Forwarded to Examiner
Dec 15, 2025MREXORX - Mail Ex Parte Request for Reexamination Granted
Oct 3, 2025MRPWPRX - Mail Pilot Waiver Program - Ex Parte Interview Summary
Oct 1, 2025DOCKCase Docketed to Examiner in GAU
Oct 1, 2025DOCKCase Docketed to Examiner in GAU
Sep 24, 2025MRXNReexamination Formalities Notice Mailed
Sep 24, 2025MRXNReexamination Formalities Notice Mailed
Sep 24, 2025COMPApplication Is Now Complete
Sep 23, 2025RXTTLRPTTitle Report
Sep 23, 2025RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Sep 23, 2025RXNREQFDNotice of reexamination request filing date
Sep 23, 2025RXNREQAUNotice of assignment of reexamination request
Sep 23, 2025RXC.ADRReexam - Correspondence Address Change for Third Party Requester
Sep 17, 2025RXRLFReExam Litigation Found
Sep 17, 2025RXLITSRReexam Litigation Search Conducted
Sep 17, 2025PRXRParalegal Reexam Review Complete
Sep 17, 2025FTFIFITF set to NO - revise initial setting
Sep 16, 2025RXPA..RReexam - Change in Power of Attorney (May Include Associate POA) for Third Party Requester
Sep 16, 2025RXOSUB.RReexamination requested by third party requester
Sep 16, 2025RXOSUBReceipt of Original Ex Parte Reexam Request
Sep 16, 2025RXIDS.RReexam - Information Disclosure Statement Filed by Third Party Requester
Sep 16, 2025RXC/SRCertificate of Service
Sep 16, 2025RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
Sep 16, 2025RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
Sep 16, 2025BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)

Prosecution, PTAB & CAFC

PTAB Proceedings (IPR, PGR, CBM, DER)

IPR2025-00188IPR — Institution Denied

Petitioner

Cisco Systems, Inc.

Petition Filed

Nov 15, 2024

Institution

Aug 22, 2025

Decision

Jun 13, 2025

Terminated

Aug 22, 2025

Federal Circuit (CAFC)

None found

Terminal Disclaimer

None found

Prosecution History

None found

Maintenance Fees

Grant
Mar 17, 2015
3.5-yr
Sep 17, 2018
Paid Mar 18, 2019
7.5-yr
Sep 17, 2022
Paid Mar 16, 2023
11.5-yr
Sep 17, 2026
Expiry
Apr 18, 2033

Entity Status

Large Entity

Expires

Apr 18, 2033 (7 yr remaining)

Term Adjustment

+202 days (~0.6 yr)

Other

USPTO Event: Maintenance Fee Reminder Mailed

Assignments

201320142015201620172018201920202021FiledPRADEEP JAINKANWAR SINGHSRIKRISHNAN VENKATARAMANALCATEL LUCENTALCATEL-LUCENT USA INC.ALCATEL LUCENTWSOU INVESTMENTS, LLCCREDIT SUISSE AGSecurity interest, Jan 2013CREDIT SUISSE AGRelease, Aug 2014OMEGA CREDIT OPPORTUNITIES MASTER FUND, LPSecurity interest, Aug 2017OCO OPPORTUNITIES MASTER FUND, L.P. (F/K/A OMEGA CREDIT OPPORTUNITIES MASTER FUND LPRelease, May 2019BP FUNDING TRUST, SERIES SPL-VISecurity interest, May 2019OT WSOU TERRIER HOLDINGS, LLCSecurity interest, May 2021TERRIER SSC, LLCRelease, May 2021
AssignmentReel/Frame: 029241/0269Recorded: Nov 5, 2012

From

PRADEEP JAINInventor
Oct 10, 2012
KANWAR SINGHInventor
Oct 10, 2012
SRIKRISHNAN VENKATARAMANInventor
Oct 10, 2012
→

To

ALCATEL-LUCENT USA INC.

Security InterestReel/Frame: 030510/0627Recorded: Mar 7, 2013

From

ALCATEL-LUCENT USA INC.
Jan 30, 2013
→

To

CREDIT SUISSE AG

AssignmentReel/Frame: 031420/0703Recorded: Oct 16, 2013

From

ALCATEL-LUCENT USA INC.
Oct 15, 2013
→

To

ALCATEL LUCENT

ReleaseReel/Frame: 033949/0016Recorded: Oct 9, 2014

From

CREDIT SUISSE AG
Aug 19, 2014
→

To

ALCATEL-LUCENT USA INC.

AssignmentReel/Frame: 044000/0053Recorded: Sep 25, 2017

From

ALCATEL LUCENT
Jul 22, 2017
→

To

WSOU INVESTMENTS, LLC

Security InterestReel/Frame: 043966/0574Recorded: Sep 21, 2017

From

WSOU INVESTMENTS, LLC
Aug 22, 2017
→

To

OMEGA CREDIT OPPORTUNITIES MASTER FUND, LP

ReleaseReel/Frame: 049246/0405Recorded: May 21, 2019

From

OCO OPPORTUNITIES MASTER FUND, L.P. (F/K/A OMEGA CREDIT OPPORTUNITIES MASTER FUND LP
May 16, 2019
→

To

WSOU INVESTMENTS, LLC

Security InterestReel/Frame: 049235/0068Recorded: May 20, 2019

From

WSOU INVESTMENTS, LLC
May 16, 2019
→

To

BP FUNDING TRUST, SERIES SPL-VI

Security InterestReel/Frame: 056990/0081Recorded: Jun 1, 2021

From

WSOU INVESTMENTS, LLC
May 28, 2021
→

To

OT WSOU TERRIER HOLDINGS, LLC

ReleaseReel/Frame: 056526/0093Recorded: Jun 3, 2021

From

TERRIER SSC, LLC
May 28, 2021
→

To

WSOU INVESTMENTS, LLC