Wednesday, July 8, 2026

Patent intelligence · US

US 9856241

Substituted benzofuranyl and benzoxazolyl compounds and uses thereof

granted A61PA61P1/02A61P1/04A61P1/16
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 11
Applicant portfolio 38
Related coverage 2
Patent details — US 9856241

Quick answer

US 9856241 (Substituted benzofuranyl and benzoxazolyl compounds and uses thereof) is held by Karyopharm Therapeutics Inc.. Status: granted. Granted Jan 2, 2018. Expires Dec 28, 2037 (11 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
16
CPC classes
A61P, A61P1/02, A61P1/04, A61P1/16, A61P1/18, A61P11/00

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Related coverage

Frequently asked questions

What is US patent 9856241?

US 9856241 (Substituted benzofuranyl and benzoxazolyl compounds and uses thereof) is held by Karyopharm Therapeutics Inc.. Status: granted. Granted Jan 2, 2018. Expires Dec 28, 2037 (11 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9856241?

Karyopharm Therapeutics Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 38 pharmaceutical patents for this assignee.

When does US 9856241 expire?

Our index shows an expiration date of Dec 28, 2037 (11 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.