Wednesday, July 8, 2026

Patent intelligence · US

US 7550503

Physiologically active substances

granted A61KA61K31/336A61K31/366A61K31/4025
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 3
Applicant portfolio 8,292
Patent details — US 7550503
Jurisdiction
US
Status
granted
Grant date
Jun 23, 2009
Expiration
Jun 18, 2029
Claims
26
CPC classes
A61K, A61K31/336, A61K31/366, A61K31/4025
View on Google Patents ↗

Quick answer

US 7550503 (Physiologically active substances) is held by American Regent, Inc.. Status: granted. Granted Jun 23, 2009. Expires Jun 18, 2029 (3 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
26
CPC classes
A61K, A61K31/336, A61K31/366, A61K31/4025, A61K31/4427, A61K31/4523

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Frequently asked questions

What is US patent 7550503?

US 7550503 (Physiologically active substances) is held by American Regent, Inc.. Status: granted. Granted Jun 23, 2009. Expires Jun 18, 2029 (3 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 7550503?

American Regent, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 8,292 pharmaceutical patents for this assignee.

When does US 7550503 expire?

Our index shows an expiration date of Jun 18, 2029 (3 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.