Status
Reexam Preprocessing Completed - Released to Assigned GAU
Filed
Oct 2, 2026
Pre-Order Paper
Window open until about Nov 11, 2026
Last Updated
Oct 15, 2026
Examiner
Not assigned
Art Unit
Requester
Anonymous
Requester Law Firm
Requested By
Third Party
Patent Owner(via USPTO assignment records)
Patent Owner Law Firm
Owner hasn't filed yet
Reexam History (15 events)
Oct 16, 2026MRXNReexamination Formalities Notice Mailed
Oct 16, 2026MRXNReexamination Formalities Notice Mailed
Oct 16, 2026COMPApplication Is Now Complete
Oct 15, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Oct 15, 2026RXNREQAUNotice of assignment of reexamination request
Oct 15, 2026FTFSFITF set to YES - revise initial setting
Oct 15, 2026RXNREQFDNotice of reexamination request filing date
Oct 5, 2026PRXRParalegal Reexam Review Complete
Oct 5, 2026RXLITSRReexam Litigation Search Conducted
Oct 5, 2026RXTTLRPTTitle Report
Oct 2, 2026RXOSUB.RReexamination requested by third party requester
Oct 2, 2026RXC/SRCertificate of Service
Oct 2, 2026RXIDS.RReexam - Information Disclosure Statement Filed by Third Party Requester
Oct 2, 2026BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
Oct 2, 2026RXOSUBReceipt of Original Ex Parte Reexam Request
Prosecution, PTAB & CAFC
PTAB Proceedings (IPR, PGR, CBM, DER)
None found
Federal Circuit (CAFC)
None found
Terminal Disclaimer
None found
Prosecution History
None found
Maintenance Fees
Grant
Nov 11, 2025
3.5-yr
May 11, 2029
7.5-yr
May 11, 2033
11.5-yr
May 11, 2037
Expiry
Sep 11, 2044
Entity Status
Large Entity
Expires
Sep 11, 2044 (17.9 yr remaining)
Term Adjustment
+1008 days (~2.8 yr)
Assignments
AssignmentReel/Frame: 059399/0535Recorded: Mar 25, 2022
From
SANJEEV AHUJAInventor
Jan 30, 2018
WAI KEEN CHUNGInventor
Dec 15, 2017
DEBORAH SWEET GOLDBERGInventor
Dec 20, 2017
MICHAEL HANDLOGTENInventor
Dec 15, 2017
SUZANNE HUDAKInventor
Dec 18, 2017
KENNETH HWANGInventor
Dec 20, 2017
SOMEET NARANGInventor
Dec 21, 2017
BRIAN RUSSELLInventor
Jan 9, 2018
JIHONG WANGInventor
Jan 23, 2018
MIN ZHUInventor
Dec 18, 2017
→
To
MEDIMMUNE LLC