Wednesday, July 8, 2026

Patent intelligence · US

US 11918557

Treatment of circadian rhythm disorders

granted A61KA61K31/00A61K31/15A61K31/277
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 18
Applicant portfolio 96
Patent details — US 11918557
Jurisdiction
US
Status
granted
Grant date
Mar 5, 2024
Expiration
Feb 29, 2044
Claims
10
CPC classes
A61K, A61K31/00, A61K31/15, A61K31/277
View on Google Patents ↗

Quick answer

US 11918557 (Treatment of circadian rhythm disorders) is held by VANDA PHARMACEUTICALS INC.. Status: granted. Granted Mar 5, 2024. Expires Feb 29, 2044 (18 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
10
CPC classes
A61K, A61K31/00, A61K31/15, A61K31/277, A61K31/343, A61K31/496

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Frequently asked questions

What is US patent 11918557?

US 11918557 (Treatment of circadian rhythm disorders) is held by VANDA PHARMACEUTICALS INC.. Status: granted. Granted Mar 5, 2024. Expires Feb 29, 2044 (18 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11918557?

VANDA PHARMACEUTICALS INC. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 96 pharmaceutical patents for this assignee.

When does US 11918557 expire?

Our index shows an expiration date of Feb 29, 2044 (18 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.