Wednesday, June 10, 2026

Patent intelligence · US

US 6077536

Pharmaceutical formulation

expired A61K 9/ 46 A IA61K 31/ 43 A IA61K/3143A61K/90007
Status expired
Linked drugs 1
Pipeline programs 6
Years to expiry 0
Applicant portfolio 25
Patent details — US 6077536
Jurisdiction
US
Status
expired
Grant date
Jun 20, 2000
Expiration
Jun 15, 2020
CPC classes
A61K 9/ 46 A I, A61K 31/ 43 A I, A61K/3143, A61K/90007
View on Google Patents ↗

Quick answer

US 6077536 (Pharmaceutical formulation) is held by BEECHAM GROUP PLC [GB]. Status: expired. Granted Jun 20, 2000. Expires Jun 15, 2020 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
CPC classes
A61K 9/ 46 A I, A61K 31/ 43 A I, A61K/3143, A61K/90007, A61K9/46

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Frequently asked questions

What is US patent 6077536?

US 6077536 (Pharmaceutical formulation) is held by BEECHAM GROUP PLC [GB]. Status: expired. Granted Jun 20, 2000. Expires Jun 15, 2020 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6077536?

BEECHAM GROUP PLC [GB] is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 25 pharmaceutical patents for this assignee.

When does US 6077536 expire?

Our index shows an expiration date of Jun 15, 2020 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.