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Status

Reexamination Certificate Issued

Filed

Aug 30, 2024

Last Updated

Nov 21, 2025

Examiner

Eric B Kiss

Art Unit

3992

Requester

Unknown

Requester Law Firm

Fish & Richardson, P.C.

Requested By

Third Party

Patent OwnerInferred

Headwater Research LLC

P.O. Law Firm

Unknown

Sector (CPC)

HElectrical & Electronic
H04Telecommunications
H04LTransmission of Digital Information

USPC

370Multiplex Communications

Reexam History (69 events)

Nov 21, 2025REEXInput Issue Number and Issue Date for Reexamination
Oct 5, 2025RXPUBSReexam Forwarded to Office of Publications
Sep 3, 2025MRNRCRX - Mail Notice of Intent to Issue a Reexam Certificate
Aug 29, 2025PRXRParalegal Reexam Review Complete
Aug 25, 2025RXRLFReExam Litigation Found
Aug 25, 2025RXLITSRReexam Litigation Search Conducted
Jul 29, 2025IDSCInformation Disclosure Statement considered
Jul 29, 2025IDSCInformation Disclosure Statement considered
Jul 29, 2025IDSCInformation Disclosure Statement considered
Jul 29, 2025IDSCInformation Disclosure Statement considered
Jul 29, 2025IDSCInformation Disclosure Statement considered
Jul 29, 2025IDSCInformation Disclosure Statement considered
Jul 29, 2025IDSCInformation Disclosure Statement considered
Jul 24, 2025WIDSInformation Disclosure Statement (IDS) Filed
Jul 24, 2025WIDSInformation Disclosure Statement (IDS) Filed
Jul 24, 2025WIDSInformation Disclosure Statement (IDS) Filed
Jul 24, 2025WIDSInformation Disclosure Statement (IDS) Filed
Jul 24, 2025RXIDS.Information Disclosure Statement Filed
Jul 24, 2025RXIDS.Information Disclosure Statement Filed
Jul 24, 2025RXIDS.Information Disclosure Statement Filed
Jul 24, 2025RXC/SRCertificate of Service
Jul 24, 2025RXC/SRCertificate of Service
Jul 22, 2025RXC/SRCertificate of Service
Jul 22, 2025RXAF/DAffidavit(s), Declaration(s) and/or Exhibit(s) Filed
Jul 22, 2025RXA...Response after Non-Final Action
Jul 3, 2025WIDSInformation Disclosure Statement (IDS) Filed
Jul 3, 2025WIDSInformation Disclosure Statement (IDS) Filed
Jul 3, 2025WIDSInformation Disclosure Statement (IDS) Filed
Jul 3, 2025RXLET.Miscellaneous Incoming Letter
Jul 3, 2025RXIDS.Information Disclosure Statement Filed
Jul 3, 2025RXC/M.Certificate of Mailing
Jul 3, 2025RXAF/DAffidavit(s), Declaration(s) and/or Exhibit(s) Filed
Jul 3, 2025RXAF/DAffidavit(s), Declaration(s) and/or Exhibit(s) Filed
Jul 3, 2025RXAF/DAffidavit(s), Declaration(s) and/or Exhibit(s) Filed
May 30, 2025MRXG.RX - Mail Extension of Time Period for Response Granted
May 28, 2025RXRQ/TRequest for Extension of Time
May 28, 2025RXC/SRCertificate of Service
May 28, 2025RXC/M.Certificate of Mailing
May 6, 2025WIDSInformation Disclosure Statement (IDS) Filed
May 6, 2025RXIDS.Information Disclosure Statement Filed
May 1, 2025WIDSInformation Disclosure Statement (IDS) Filed
May 1, 2025RXIDS.Information Disclosure Statement Filed
Apr 25, 2025MR.NFRX - Mail Reexam Non-Final Action
Feb 26, 2025PA..Change in Power of Attorney (May Include Associate POA)
Feb 25, 2025RXC.ADCorrespondence Address Change
Feb 24, 2025RXPA..Change in Power of Attorney (May Include Associate POA)
Jan 13, 2025RXFWDXDate Forwarded to Examiner
Nov 8, 2024MREXORX - Mail Ex Parte Request for Reexamination Granted
Sep 11, 2024MRPWPRX - Mail Pilot Waiver Program - Ex Parte Interview Summary
Sep 9, 2024MRXNReexamination Formalities Notice Mailed
Sep 9, 2024MRXNReexamination Formalities Notice Mailed
Sep 9, 2024DOCKCase Docketed to Examiner in GAU
Sep 9, 2024COMPApplication Is Now Complete
Sep 6, 2024RXTTLRPTTitle Report
Sep 6, 2024RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Sep 6, 2024RXNREQAUNotice of assignment of reexamination request
Sep 3, 2024RXRLFReExam Litigation Found
Sep 3, 2024RXNREQFDNotice of reexamination request filing date
Sep 3, 2024RXNREQAUNotice of assignment of reexamination request
Sep 3, 2024RXLITSRReexam Litigation Search Conducted
Sep 3, 2024PRXRParalegal Reexam Review Complete
Sep 3, 2024FTFIFITF set to NO - revise initial setting
Aug 30, 2024RXOSUB.RReexamination requested by third party requester
Aug 30, 2024RXOSUBReceipt of Original Ex Parte Reexam Request
Aug 30, 2024RXNREQFDNotice of reexamination request filing date
Aug 30, 2024RXIDS.RReexam - Information Disclosure Statement Filed by Third Party Requester
Aug 30, 2024RXC/SRCertificate of Service
Aug 30, 2024RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
Aug 30, 2024BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)