Wednesday, July 8, 2026

Patent intelligence · US

US 12221452

Synthesis of cantharidin

granted A61PA61P17/00
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 19
Applicant portfolio 7
Patent details — US 12221452

Quick answer

US 12221452 (Synthesis of cantharidin) is held by Verrica Pharmaceuticals Inc.. Status: granted. Granted Feb 11, 2025. Expires Feb 6, 2045 (19 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
17
CPC classes
A61P, A61P17/00

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Frequently asked questions

What is US patent 12221452?

US 12221452 (Synthesis of cantharidin) is held by Verrica Pharmaceuticals Inc.. Status: granted. Granted Feb 11, 2025. Expires Feb 6, 2045 (19 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 12221452?

Verrica Pharmaceuticals Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 7 pharmaceutical patents for this assignee.

When does US 12221452 expire?

Our index shows an expiration date of Feb 6, 2045 (19 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.