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90/016,185Wirless Network Buffered Message System10,321,320Open

Status

Reexam - Request Ready for Ex Parte Action

Filed

Apr 15, 2026

Pre-Order Paper

None filed

Last Updated

Oct 7, 2026

Art Unit

3992

Requester

Walmart Inc.

Requested By

Third Party

Patent Owner(via USPTO assignment records)

Headwater Research LLC

Patent Owner Law Firm

Owner hasn't filed yet

Sector (CPC)

HElectrical & Electronic
H04Telecommunications
H04WWireless Communication Networks

USPC

705Data Processing: Financial, Business Practice, Management, Or Cost/Price Determination

Reexam History (21 events)

Oct 7, 2026RXFWDXDate Forwarded to Examiner
Oct 7, 2026RCCPRX - Concurrent Proceedings Notice
Oct 6, 2026RXC/SRCertificate of Service
Sep 26, 2026RXFWDXDate Forwarded to Examiner
Jul 14, 2026MREXORX - Mail Ex Parte Request for Reexamination Granted
Apr 29, 2026DOCKCase Docketed to Examiner in GAU
Apr 21, 2026MRXNReexamination Formalities Notice Mailed
Apr 21, 2026MRXNReexamination Formalities Notice Mailed
Apr 21, 2026COMPApplication Is Now Complete
Apr 20, 2026RXTTLRPTTitle Report
Apr 20, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Apr 20, 2026RXNREQFDNotice of reexamination request filing date
Apr 20, 2026RXNREQAUNotice of assignment of reexamination request
Apr 20, 2026FTFIFITF set to NO - revise initial setting
Apr 15, 2026RXOSUB.RReexamination requested by third party requester
Apr 15, 2026RXOSUBReceipt of Original Ex Parte Reexam Request
Apr 15, 2026RXC/SRCertificate of Service
Apr 15, 2026RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
Apr 15, 2026RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
Apr 15, 2026PRXRParalegal Reexam Review Complete
Apr 15, 2026BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)

Prosecution, PTAB & CAFC

PTAB Proceedings (IPR, PGR, CBM, DER)

IPR2026-00153IPR — Discretionary Denial

Petitioner

Target Corporation

Petition Filed

Nov 25, 2025

Institution

Mar 23, 2026

Decision

Mar 23, 2026

Terminated

Mar 23, 2026

IPR2026-00106IPR — Trial Instituted

Petitioner

Amazon.com Services LLC et al.

Petition Filed

Nov 10, 2025

Institution

Apr 28, 2026

Decision

Apr 28, 2026

Federal Circuit (CAFC)

None found

Terminal Disclaimer

None found

Prosecution History

None found

Maintenance Fees

Grant
Jun 11, 2019
3.5-yr
Dec 11, 2022
Paid Dec 12, 2022
7.5-yr
Dec 11, 2026
11.5-yr
Dec 11, 2030
Expiry
Feb 2, 2038

Entity Status

Large Entity

Expires

Feb 2, 2038 (11.8 yr remaining)

Term Adjustment

+280 days (~0.8 yr)

Assignments

20102011201220132014201520162017FiledGREGORY G. RALEIGHHEADWATER PARTNERS I LLCHEADWATER RESEARCH LLC
AssignmentReel/Frame: 042231/0565Recorded: May 3, 2017

From

GREGORY G. RALEIGHInventor
Mar 24, 2009
→

To

HEADWATER PARTNERS I LLC

MergerReel/Frame: 042231/0594Recorded: May 3, 2017

From

HEADWATER MANAGEMENT LLC
Dec 29, 2016
HEADWATER PARTNERS I LLC
Dec 29, 2016
→

To

HEADWATER RESEARCH LLC