Wednesday, July 8, 2026

Patent intelligence · US

US 6514537

Magnesium citrate solution

expired A61KA61K31/191A61K33/06A61K33/08
Status expired
Linked drugs 2
Pipeline programs 6
Years to expiry 0
Applicant portfolio 34
Related coverage 2
Patent details — US 6514537

Quick answer

US 6514537 (Magnesium citrate solution) is held by Cumberland Swan Holdings, Inc.. Status: expired. Granted Feb 4, 2003. Expires Jan 30, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
19
CPC classes
A61K, A61K31/191, A61K33/06, A61K33/08, A61K45/06

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Related coverage

Frequently asked questions

What is US patent 6514537?

US 6514537 (Magnesium citrate solution) is held by Cumberland Swan Holdings, Inc.. Status: expired. Granted Feb 4, 2003. Expires Jan 30, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6514537?

Cumberland Swan Holdings, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 34 pharmaceutical patents for this assignee.

When does US 6514537 expire?

Our index shows an expiration date of Jan 30, 2023 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.