Wednesday, July 8, 2026

Patent intelligence · US

US 11198693

Functionalized heterocycles as antiviral agents

granted A61KA61K45/06
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 15
Applicant portfolio 218
Patent details — US 11198693

Quick answer

US 11198693 (Functionalized heterocycles as antiviral agents) is held by Enanta Pharmaceuticals, Inc.. Status: granted. Granted Dec 14, 2021. Expires Dec 9, 2041 (15 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
20
CPC classes
A61K, A61K45/06

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Frequently asked questions

What is US patent 11198693?

US 11198693 (Functionalized heterocycles as antiviral agents) is held by Enanta Pharmaceuticals, Inc.. Status: granted. Granted Dec 14, 2021. Expires Dec 9, 2041 (15 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11198693?

Enanta Pharmaceuticals, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 218 pharmaceutical patents for this assignee.

When does US 11198693 expire?

Our index shows an expiration date of Dec 9, 2041 (15 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.