Wednesday, July 8, 2026

Patent intelligence · US

US 9580428

Compositions and methods for inhibiting viral polymerase

granted A61KA61K31/519A61K9/0019A61K9/0053
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 11
Applicant portfolio 72
Patent details — US 9580428
Jurisdiction
US
Status
granted
Grant date
Feb 28, 2017
Expiration
Feb 23, 2037
Claims
16
CPC classes
A61K, A61K31/519, A61K9/0019, A61K9/0053
View on Google Patents ↗

Quick answer

US 9580428 (Compositions and methods for inhibiting viral polymerase) is held by BioCryst Pharmaceuticals, Inc.. Status: granted. Granted Feb 28, 2017. Expires Feb 23, 2037 (11 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
16
CPC classes
A61K, A61K31/519, A61K9/0019, A61K9/0053, A61K9/12, A61K9/20

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Frequently asked questions

What is US patent 9580428?

US 9580428 (Compositions and methods for inhibiting viral polymerase) is held by BioCryst Pharmaceuticals, Inc.. Status: granted. Granted Feb 28, 2017. Expires Feb 23, 2037 (11 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9580428?

BioCryst Pharmaceuticals, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 72 pharmaceutical patents for this assignee.

When does US 9580428 expire?

Our index shows an expiration date of Feb 23, 2037 (11 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.