Wednesday, July 8, 2026

Patent intelligence · US

US 11975081

Bifunctional chelators and conjugates

granted A61KA61K51/0482A61K51/1093
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 18
Applicant portfolio 20
Patent details — US 11975081

Quick answer

US 11975081 (Bifunctional chelators and conjugates) is held by Actinium Phamaceuticals, Inc.. Status: granted. Granted May 7, 2024. Expires May 2, 2044 (18 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
26
CPC classes
A61K, A61K51/0482, A61K51/1093

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Frequently asked questions

What is US patent 11975081?

US 11975081 (Bifunctional chelators and conjugates) is held by Actinium Phamaceuticals, Inc.. Status: granted. Granted May 7, 2024. Expires May 2, 2044 (18 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11975081?

Actinium Phamaceuticals, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 20 pharmaceutical patents for this assignee.

When does US 11975081 expire?

Our index shows an expiration date of May 2, 2044 (18 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.