Wednesday, July 8, 2026

Patent intelligence · US

US 8987303

AMPK-activating heterocyclic compounds and methods for using the same

granted A61PA61P1/04A61P1/14A61P1/16
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 9
Applicant portfolio 373
Patent details — US 8987303
Jurisdiction
US
Status
granted
Grant date
Mar 24, 2015
Expiration
Mar 19, 2035
Claims
24
CPC classes
A61P, A61P1/04, A61P1/14, A61P1/16
View on Google Patents ↗

Quick answer

US 8987303 (AMPK-activating heterocyclic compounds and methods for using the same) is held by Rigel Pharmaceuticals, Inc.. Status: granted. Granted Mar 24, 2015. Expires Mar 19, 2035 (9 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
24
CPC classes
A61P, A61P1/04, A61P1/14, A61P1/16, A61P1/18, A61P11/00

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Frequently asked questions

What is US patent 8987303?

US 8987303 (AMPK-activating heterocyclic compounds and methods for using the same) is held by Rigel Pharmaceuticals, Inc.. Status: granted. Granted Mar 24, 2015. Expires Mar 19, 2035 (9 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 8987303?

Rigel Pharmaceuticals, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 373 pharmaceutical patents for this assignee.

When does US 8987303 expire?

Our index shows an expiration date of Mar 19, 2035 (9 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.