Wednesday, July 8, 2026

Patent intelligence · US

US 6057311

Benzodiazonine derivatives binding to cholecystokinin or gastrin receptors

expired A61KA61K38/00
Status expired
Linked drugs 1
Pipeline programs 6
Years to expiry 0
Applicant portfolio 38
Patent details — US 6057311

Quick answer

US 6057311 (Benzodiazonine derivatives binding to cholecystokinin or gastrin receptors) is held by The James Black Foundation Limited. Status: expired. Granted May 2, 2000. Expires Apr 27, 2020 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
34
CPC classes
A61K, A61K38/00

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Frequently asked questions

What is US patent 6057311?

US 6057311 (Benzodiazonine derivatives binding to cholecystokinin or gastrin receptors) is held by The James Black Foundation Limited. Status: expired. Granted May 2, 2000. Expires Apr 27, 2020 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6057311?

The James Black Foundation Limited is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 38 pharmaceutical patents for this assignee.

When does US 6057311 expire?

Our index shows an expiration date of Apr 27, 2020 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.