Wednesday, July 8, 2026

Patent intelligence · US

US 12251470

Lipid nanoparticle formulations

granted A61KA61K31/713A61K9/0019A61K9/1271
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 19
Applicant portfolio 56
Patent details — US 12251470
Jurisdiction
US
Status
granted
Grant date
Mar 18, 2025
Expiration
Mar 13, 2045
Claims
10
CPC classes
A61K, A61K31/713, A61K9/0019, A61K9/1271
View on Google Patents ↗

Quick answer

US 12251470 (Lipid nanoparticle formulations) is held by ARBUTUS BIOPHARMA CORPORATION. Status: granted. Granted Mar 18, 2025. Expires Mar 13, 2045 (19 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
10
CPC classes
A61K, A61K31/713, A61K9/0019, A61K9/1271, A61K9/1272, A61K9/5123

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Frequently asked questions

What is US patent 12251470?

US 12251470 (Lipid nanoparticle formulations) is held by ARBUTUS BIOPHARMA CORPORATION. Status: granted. Granted Mar 18, 2025. Expires Mar 13, 2045 (19 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 12251470?

ARBUTUS BIOPHARMA CORPORATION is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 56 pharmaceutical patents for this assignee.

When does US 12251470 expire?

Our index shows an expiration date of Mar 13, 2045 (19 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.