Wednesday, July 8, 2026

Patent intelligence · US

US 11344557

Corticotropin releasing factor receptor antagonists

granted A61KA61K31/5377A61K31/573A61K9/14
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 16
Applicant portfolio 9
Patent details — US 11344557
Jurisdiction
US
Status
granted
Grant date
May 31, 2022
Expiration
May 26, 2042
Claims
27
CPC classes
A61K, A61K31/5377, A61K31/573, A61K9/14
View on Google Patents ↗

Quick answer

US 11344557 (Corticotropin releasing factor receptor antagonists) is held by SPRUCE BIOSCIENCES, INC.. Status: granted. Granted May 31, 2022. Expires May 26, 2042 (16 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
27
CPC classes
A61K, A61K31/5377, A61K31/573, A61K9/14, A61K9/48, A61K9/4825

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Frequently asked questions

What is US patent 11344557?

US 11344557 (Corticotropin releasing factor receptor antagonists) is held by SPRUCE BIOSCIENCES, INC.. Status: granted. Granted May 31, 2022. Expires May 26, 2042 (16 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11344557?

SPRUCE BIOSCIENCES, INC. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 9 pharmaceutical patents for this assignee.

When does US 11344557 expire?

Our index shows an expiration date of May 26, 2042 (16 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.