Wednesday, July 8, 2026

Patent intelligence · US

US 11904052

Methods for ameliorating infusion reactions

granted A61KA61K31/192A61K45/06A61K47/10
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 18
Applicant portfolio 56
Patent details — US 11904052
Jurisdiction
US
Status
granted
Grant date
Feb 20, 2024
Expiration
Feb 15, 2044
Claims
13
CPC classes
A61K, A61K31/192, A61K45/06, A61K47/10
View on Google Patents ↗

Quick answer

US 11904052 (Methods for ameliorating infusion reactions) is held by ARBUTUS BIOPHARMA CORPORATION. Status: granted. Granted Feb 20, 2024. Expires Feb 15, 2044 (18 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
13
CPC classes
A61K, A61K31/192, A61K45/06, A61K47/10, A61K47/24, A61K9/0019

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Frequently asked questions

What is US patent 11904052?

US 11904052 (Methods for ameliorating infusion reactions) is held by ARBUTUS BIOPHARMA CORPORATION. Status: granted. Granted Feb 20, 2024. Expires Feb 15, 2044 (18 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11904052?

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 11904052 expire?

Our index shows an expiration date of Feb 15, 2044 (18 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.