Wednesday, July 8, 2026

Patent intelligence · US

US 6545049

Dimer-selective RXR modulators and methods for their use

expired A61KA61K31/192A61K31/425A61K31/44
Status expired
Linked drugs 3
Pipeline programs 6
Years to expiry 0
Applicant portfolio 133
Patent details — US 6545049
Jurisdiction
US
Status
expired
Grant date
Apr 8, 2003
Expiration
Apr 3, 2023
Claims
36
CPC classes
A61K, A61K31/192, A61K31/425, A61K31/44
View on Google Patents ↗

Quick answer

US 6545049 (Dimer-selective RXR modulators and methods for their use) is held by Ligand Pharmaceuticals Incorporated. Status: expired. Granted Apr 8, 2003. Expires Apr 3, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
36
CPC classes
A61K, A61K31/192, A61K31/425, A61K31/44, A61K31/4418, A61K38/28

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Frequently asked questions

What is US patent 6545049?

US 6545049 (Dimer-selective RXR modulators and methods for their use) is held by Ligand Pharmaceuticals Incorporated. Status: expired. Granted Apr 8, 2003. Expires Apr 3, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6545049?

Ligand Pharmaceuticals Incorporated is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 133 pharmaceutical patents for this assignee.

When does US 6545049 expire?

Our index shows an expiration date of Apr 3, 2023 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.