Wednesday, July 8, 2026

Patent intelligence · US

US 8507455

Folate conjugates

granted A61KA61K47/55
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 7
Applicant portfolio 379
Patent details — US 8507455

Quick answer

US 8507455 (Folate conjugates) is held by Alnylam Pharmaceuticals, Inc.. Status: granted. Granted Aug 13, 2013. Expires Aug 8, 2033 (7 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
14
CPC classes
A61K, A61K47/55

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Frequently asked questions

What is US patent 8507455?

US 8507455 (Folate conjugates) is held by Alnylam Pharmaceuticals, Inc.. Status: granted. Granted Aug 13, 2013. Expires Aug 8, 2033 (7 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 8507455?

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 8507455 expire?

Our index shows an expiration date of Aug 8, 2033 (7 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.