Wednesday, July 8, 2026

Patent intelligence · US

US 11661459

Artificial cell death polypeptide for chimeric antigen receptor and uses thereof

granted A61KA61K2039/507A61K2239/31A61K2239/38
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 17
Applicant portfolio 39
Patent details — US 11661459
Jurisdiction
US
Status
granted
Grant date
May 30, 2023
Expiration
May 25, 2043
Claims
11
CPC classes
A61K, A61K2039/507, A61K2239/31, A61K2239/38
View on Google Patents ↗

Quick answer

US 11661459 (Artificial cell death polypeptide for chimeric antigen receptor and uses thereof) is held by Century Therapeutics, Inc.. Status: granted. Granted May 30, 2023. Expires May 25, 2043 (17 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
11
CPC classes
A61K, A61K2039/507, A61K2239/31, A61K2239/38, A61K2239/48, A61K35/545

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Frequently asked questions

What is US patent 11661459?

US 11661459 (Artificial cell death polypeptide for chimeric antigen receptor and uses thereof) is held by Century Therapeutics, Inc.. Status: granted. Granted May 30, 2023. Expires May 25, 2043 (17 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11661459?

Century Therapeutics, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 39 pharmaceutical patents for this assignee.

When does US 11661459 expire?

Our index shows an expiration date of May 25, 2043 (17 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.