Wednesday, June 10, 2026

Patent intelligence · CA

CA 2434743

PREPARATIONS TOPIQUES DE BRIVUDINE STABILISEES

expired A61K 9/ 06 A IA61K 9/ 10 A IA61K 31/ 70 A IA61K 31/ 513 A I
Status expired
Years to expiry 0
Applicant portfolio 25
Patent details — CA 2434743
Jurisdiction
CA
Status
expired
Grant date
Jul 25, 2002
Expiration
Jul 20, 2022
CPC classes
A61K 9/ 06 A I, A61K 9/ 10 A I, A61K 31/ 70 A I, A61K 31/ 513 A I
View on Google Patents ↗

Quick answer

CA 2434743 (PREPARATIONS TOPIQUES DE BRIVUDINE STABILISEES) is held by BERLIN CHEMIE AG [DE]. Status: expired. Granted Jul 25, 2002. Expires Jul 20, 2022 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
CPC classes
A61K 9/ 06 A I, A61K 9/ 10 A I, A61K 31/ 70 A I, A61K 31/ 513 A I, A61K 47/ 00 A I, A61K 47/ 02 A I

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Frequently asked questions

What is US patent 2434743?

CA 2434743 (PREPARATIONS TOPIQUES DE BRIVUDINE STABILISEES) is held by BERLIN CHEMIE AG [DE]. Status: expired. Granted Jul 25, 2002. Expires Jul 20, 2022 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns CA 2434743?

BERLIN CHEMIE AG [DE] is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 25 pharmaceutical patents for this assignee.

When does CA 2434743 expire?

Our index shows an expiration date of Jul 20, 2022 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.