90/016,184CYSTEINE PROTEASE12,359,183Open

Status

Determination - Reexamination Ordered

Filed

Apr 14, 2026

Last Updated

Jun 12, 2026

Art Unit

3991

Requester

Unknown

Requester Law Firm

Greenberg Traurig, LLP

Requested By

Third Party

Patent OwnerInferred

Hansa Biopharma AB

Sector (CPC)

CChemistry & Materials
C12Biotechnology
C12NMicroorganisms & Enzymes

USPC

435Chemistry: Molecular Biology And Microbiology

Reexam History (19 events)

Jun 12, 2026MREXORX - Mail Ex Parte Request for Reexamination Granted
Apr 23, 2026DOCKCase Docketed to Examiner in GAU
Apr 21, 2026COMPApplication Is Now Complete
Apr 21, 2026MRXNReexamination Formalities Notice Mailed
Apr 21, 2026MRXNReexamination Formalities Notice Mailed
Apr 20, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Apr 20, 2026RXTTLRPTTitle Report
Apr 20, 2026RXNREQAUNotice of assignment of reexamination request
Apr 20, 2026RXNREQFDNotice of reexamination request filing date
Apr 16, 2026RXLITSRReexam Litigation Search Conducted
Apr 16, 2026FTFSFITF set to YES - revise initial setting
Apr 16, 2026PRXRParalegal Reexam Review Complete
Apr 14, 2026RXOSUBReceipt of Original Ex Parte Reexam Request
Apr 14, 2026BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
Apr 14, 2026RXOSUB.RReexamination requested by third party requester
Apr 14, 2026RXC/SRCertificate of Service
Apr 14, 2026RXIDS.RReexam - Information Disclosure Statement Filed by Third Party Requester
Apr 14, 2026RXOSUBReceipt of Original Ex Parte Reexam Request
Apr 14, 2026WIDSInformation Disclosure Statement (IDS) Filed

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
Jul 15, 2025
3.5-yr
Jan 15, 2029
7.5-yr
Jan 15, 2033
11.5-yr
Jan 15, 2037
Expiry
May 16, 2043

Entity Status

Large Entity

Expires

May 16, 2043 (17.1 yr remaining)

Assignments

202120222023FiledSOFIA JARNUMCHRISTIAN KJELLMANEMMA NORDAHLHANSA BIOPHARMA AB
AssignmentReel/Frame: 063658/0510Recorded: May 16, 2023

From

SOFIA JARNUMInventor
Nov 10, 2020
CHRISTIAN KJELLMANInventor
Nov 11, 2020
EMMA NORDAHLInventor
Nov 11, 2020

To

HANSA BIOPHARMA AB