Wednesday, July 8, 2026

Patent intelligence · US

US 9913843

Protein kinase C inhibitors and uses thereof

granted A61KA61K31/506A61K31/5377A61K31/538
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 12
Applicant portfolio 373
Patent details — US 9913843
Jurisdiction
US
Status
granted
Grant date
Mar 13, 2018
Expiration
Mar 8, 2038
Claims
5
CPC classes
A61K, A61K31/506, A61K31/5377, A61K31/538
View on Google Patents ↗

Quick answer

US 9913843 (Protein kinase C inhibitors and uses thereof) is held by Rigel Pharmaceuticals, Inc.. Status: granted. Granted Mar 13, 2018. Expires Mar 8, 2038 (12 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
5
CPC classes
A61K, A61K31/506, A61K31/5377, A61K31/538, A61K31/5383, A61P

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Frequently asked questions

What is US patent 9913843?

US 9913843 (Protein kinase C inhibitors and uses thereof) is held by Rigel Pharmaceuticals, Inc.. Status: granted. Granted Mar 13, 2018. Expires Mar 8, 2038 (12 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9913843?

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 9913843 expire?

Our index shows an expiration date of Mar 8, 2038 (12 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.