Wednesday, July 8, 2026

Patent intelligence · US

US 6258948

Inhibitors of Interleukin-1.beta. converting enzyme

expired A61KA61K38/00A61PA61P1/00
Status expired
Linked drugs 3
Pipeline programs 6
Years to expiry 0
Applicant portfolio 991
Patent details — US 6258948

Quick answer

US 6258948 (Inhibitors of Interleukin-1.beta. converting enzyme) is held by Vertex Pharmaceuticals Incorporated. Status: expired. Granted Jul 10, 2001. Expires Jul 5, 2021 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
46
CPC classes
A61K, A61K38/00, A61P, A61P1/00, A61P1/04, A61P1/16

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Frequently asked questions

What is US patent 6258948?

US 6258948 (Inhibitors of Interleukin-1.beta. converting enzyme) is held by Vertex Pharmaceuticals Incorporated. Status: expired. Granted Jul 10, 2001. Expires Jul 5, 2021 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6258948?

Vertex Pharmaceuticals Incorporated is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 991 pharmaceutical patents for this assignee.

When does US 6258948 expire?

Our index shows an expiration date of Jul 5, 2021 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.