Wednesday, July 8, 2026

Patent intelligence · US

US 8273870

Compositions and methods for inhibiting expression of a mutant gene

granted A61PA61P35/00A61P35/02
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 6
Applicant portfolio 379
Patent details — US 8273870

Quick answer

US 8273870 (Compositions and methods for inhibiting expression of a mutant gene) is held by Alnylam Pharmaceuticals, Inc.. Status: granted. Granted Sep 25, 2012. Expires Sep 20, 2032 (6 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
33
CPC classes
A61P, A61P35/00, A61P35/02

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Frequently asked questions

What is US patent 8273870?

US 8273870 (Compositions and methods for inhibiting expression of a mutant gene) is held by Alnylam Pharmaceuticals, Inc.. Status: granted. Granted Sep 25, 2012. Expires Sep 20, 2032 (6 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 8273870?

Alnylam Pharmaceuticals, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 379 pharmaceutical patents for this assignee.

When does US 8273870 expire?

Our index shows an expiration date of Sep 20, 2032 (6 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.