Wednesday, July 8, 2026

Patent intelligence · US

US 9878992

GDF-8 inhibitors

granted A61PA61P1/14A61P11/00A61P15/00
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 12
Applicant portfolio 373
Patent details — US 9878992
Jurisdiction
US
Status
granted
Grant date
Jan 30, 2018
Expiration
Jan 25, 2038
Claims
2
CPC classes
A61P, A61P1/14, A61P11/00, A61P15/00
View on Google Patents ↗

Quick answer

US 9878992 (GDF-8 inhibitors) is held by Rigel Pharmaceuticals, Inc.. Status: granted. Granted Jan 30, 2018. Expires Jan 25, 2038 (12 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
2
CPC classes
A61P, A61P1/14, A61P11/00, A61P15/00, A61P19/08, A61P19/10

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Frequently asked questions

What is US patent 9878992?

US 9878992 (GDF-8 inhibitors) is held by Rigel Pharmaceuticals, Inc.. Status: granted. Granted Jan 30, 2018. Expires Jan 25, 2038 (12 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9878992?

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 9878992 expire?

Our index shows an expiration date of Jan 25, 2038 (12 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.