Status
Advisory Action Mailed
Requester
Requester Law Firm
Unknown
Requested By
Third Party
Patent Owner
P.O. Law Firm
Reexam History (39 events)
Aug 28, 2026MRADVRX - Mail Reexam - Advisory Action (or Supplemental)
Aug 12, 2026RXAAF.Response to Final Filed (or Ready for Examiner Action)
Aug 12, 2026RXC/SRCertificate of Service
Jun 12, 2026MRXFRRX - Mail Final Rejection
Jun 2, 2026IDSCInformation Disclosure Statement considered
Mar 23, 2026RXLET.Miscellaneous Incoming Letter
Mar 23, 2026WIDSInformation Disclosure Statement (IDS) Filed
Mar 23, 2026RXA...Response after Non-Final Action
Mar 23, 2026RXC/SRCertificate of Service
Mar 20, 2026MREXNRX - Mail Examiner Interview Summary Record
Feb 5, 2026PA..Change in Power of Attorney (May Include Associate POA)
Feb 4, 2026MRXG.RX - Mail Extension of Time Period for Response Granted
Jan 30, 2026RXC/SRCertificate of Service
Jan 30, 2026RXRQ/TRequest for Extension of Time
Dec 22, 2025MR.NFRX - Mail Reexam Non-Final Action
Nov 7, 2025RXFWDXDate Forwarded to Examiner
Jul 8, 2025MREXORX - Mail Ex Parte Request for Reexamination Granted
May 28, 2025COMPApplication Is Now Complete
May 28, 2025MPENMail Pre-Exam Notice
May 28, 2025MRXNReexamination Formalities Notice Mailed
May 28, 2025MRXNReexamination Formalities Notice Mailed
May 27, 2025WROIPEApplication Return from OIPE
May 27, 2025ROIPEApplication Return TO OIPE
May 27, 2025DOCKCase Docketed to Examiner in GAU
May 21, 2025MRXNReexamination Formalities Notice Mailed
May 21, 2025COMPApplication Is Now Complete
May 21, 2025W/OAPre-Exam Office Action Withdrawn
May 21, 2025MRXNReexamination Formalities Notice Mailed
May 20, 2025RXNREQAUNotice of assignment of reexamination request
May 20, 2025FTFIFITF set to NO - revise initial setting
May 20, 2025RXPCOMCompletion of Preprocessing - Released to Assigned GAU
May 19, 2025RXNREQFDNotice of reexamination request filing date
May 16, 2025RXTTLRPTTitle Report
May 15, 2025CLAIMClaim Preliminary Amendment
May 15, 2025RXC/SRCertificate of Service
May 15, 2025BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
May 15, 2025RXIDS.RReexam - Information Disclosure Statement Filed by Third Party Requester
May 15, 2025RXOSUBReceipt of Original Ex Parte Reexam Request
May 15, 2025RXOSUB.RReexamination requested by third party requester
Prosecution, PTAB & CAFC
PTAB Proceedings (IPR, PGR, CBM, DER)
IPR2025-01362IPR — Discretionary Denial
Petitioner
Ciena Corporation
Petition Filed
Aug 31, 2025
Institution
Jan 9, 2026
Decision
Jan 9, 2026
Terminated
Jan 9, 2026
Federal Circuit (CAFC)
None found
Terminal Disclaimer
None found
Prosecution History
None found
Maintenance Fees
Grant
Jul 15, 2014
3.5-yr
Jan 15, 2018
Paid Feb 8, 2018
7.5-yr
Jan 15, 2022
Paid Dec 28, 2021
11.5-yr
Jan 15, 2026
Paid Jan 6, 2026
Expiry
Nov 29, 2029
Entity Status
Large Entity
Expires
Nov 29, 2029 (3.7 yr remaining)
Term Adjustment
+2172 days (~5.9 yr)
Assignments
AssignmentReel/Frame: 014401/0969Recorded: Mar 5, 2004
From
VIJOY CHOYIInventor
Mar 1, 2004
MOSHE ITAHInventor
Mar 1, 2004
ROGER LIUInventor
Mar 1, 2004
JOHN Z. YUInventor
Mar 3, 2004
EILEEN ZHOUInventor
Mar 1, 2004
→
To
HAMMERHEAD SYSTEMS
AssignmentReel/Frame: 023810/0916Recorded: Jan 19, 2010
From
HAMMERHEAD SYSTEMS, INC.,
Jan 8, 2010
→
To
BRIXHAM SOLUTIONS LTD.,
AssignmentReel/Frame: 043312/0218Recorded: Aug 16, 2017
From
BRIXHAM SOLUTIONS LTD.
Jun 27, 2017
→
To
GLOBAL INNOVATION AGGREGATORS LLC.
AssignmentReel/Frame: 051579/0773Recorded: Jan 13, 2020
From
GLOBAL INNOVATION AGGREGATORS, LLC
Dec 24, 2019
→
To
K.MIZRA LLC