Patent intelligence · US
US 6759538
Substituted diphenyl heterocycles useful for treating HCV infection
Substituted diphenyl heterocycles useful for treating HCV infection
Patent details — US 6759538
- Jurisdiction
- US
- Status
- expired
- Grant date
- Jul 6, 2004
- Expiration
- Jul 1, 2024
- Applicant
- Rigel Pharmaceuticals, Inc.
- Claims
- 34
- CPC classes
- A61P, A61P31/12, A61P31/14, A61P43/00
Quick answer
US 6759538 (Substituted diphenyl heterocycles useful for treating HCV infection) is held by Rigel Pharmaceuticals, Inc.. Status: expired. Granted Jul 6, 2004. Expires Jul 1, 2024 (0 years remaining) — relevant for patent-cliff and LOE planning.
Key facts
- Applicant
- Rigel Pharmaceuticals, Inc.
- Grant date
- Expiration
- Claims
- 34
- CPC classes
- A61P, A61P31/12, A61P31/14, A61P43/00
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Frequently asked questions
What is US patent 6759538?
US 6759538 (Substituted diphenyl heterocycles useful for treating HCV infection) is held by Rigel Pharmaceuticals, Inc.. Status: expired. Granted Jul 6, 2004. Expires Jul 1, 2024 (0 years remaining) — relevant for patent-cliff and LOE planning.
Who owns US 6759538?
Rigel Pharmaceuticals, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 373 pharmaceutical patents for this assignee.
When does US 6759538 expire?
Our index shows an expiration date of Jul 1, 2024 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.