Wednesday, July 8, 2026

Patent intelligence · US

US 10251851

Bicyclic analgesic compounds

granted A61KA61K31/13A61K31/133A61K31/14
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 13
Applicant portfolio 12
Patent details — US 10251851
Jurisdiction
US
Status
granted
Grant date
Apr 9, 2019
Expiration
Apr 4, 2039
Claims
24
CPC classes
A61K, A61K31/13, A61K31/133, A61K31/14
View on Google Patents ↗

Quick answer

US 10251851 (Bicyclic analgesic compounds) is held by Zeno Royalties & Milestones, LLC. Status: granted. Granted Apr 9, 2019. Expires Apr 4, 2039 (13 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
24
CPC classes
A61K, A61K31/13, A61K31/133, A61K31/14, A61K31/16, A61K31/215

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Frequently asked questions

What is US patent 10251851?

US 10251851 (Bicyclic analgesic compounds) is held by Zeno Royalties & Milestones, LLC. Status: granted. Granted Apr 9, 2019. Expires Apr 4, 2039 (13 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 10251851?

Zeno Royalties & Milestones, LLC is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 12 pharmaceutical patents for this assignee.

When does US 10251851 expire?

Our index shows an expiration date of Apr 4, 2039 (13 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.