Wednesday, July 8, 2026

Patent intelligence · US

US 12274735

IL-4-fusion formulations for treatment of central nervous system (CNS) tumors

granted A61KA61K38/164A61K38/2026A61K47/42
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 19
Applicant portfolio 9
Patent details — US 12274735
Jurisdiction
US
Status
granted
Grant date
Apr 15, 2025
Expiration
Apr 10, 2045
Claims
20
CPC classes
A61K, A61K38/164, A61K38/2026, A61K47/42
View on Google Patents ↗

Quick answer

US 12274735 (IL-4-fusion formulations for treatment of central nervous system (CNS) tumors) is held by Medicenna Therapeutics Inc.. Status: granted. Granted Apr 15, 2025. Expires Apr 10, 2045 (19 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
20
CPC classes
A61K, A61K38/164, A61K38/2026, A61K47/42, A61K47/46, A61K9/0012

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Frequently asked questions

What is US patent 12274735?

US 12274735 (IL-4-fusion formulations for treatment of central nervous system (CNS) tumors) is held by Medicenna Therapeutics Inc.. Status: granted. Granted Apr 15, 2025. Expires Apr 10, 2045 (19 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 12274735?

Medicenna Therapeutics Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 9 pharmaceutical patents for this assignee.

When does US 12274735 expire?

Our index shows an expiration date of Apr 10, 2045 (19 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.