Patent intelligence · US
US 6645941
6,11-3C-bicyclic 9a-azalide derivatives
6,11-3C-bicyclic 9a-azalide derivatives
Patent details — US 6645941
- Jurisdiction
- US
- Status
- expired
- Grant date
- Nov 11, 2003
- Expiration
- Nov 6, 2023
- Applicant
- Enanta Pharmaceuticals, Inc.
- Claims
- 14
- CPC classes
- A61P, A61P31/04
Quick answer
US 6645941 (6,11-3C-bicyclic 9a-azalide derivatives) is held by Enanta Pharmaceuticals, Inc.. Status: expired. Granted Nov 11, 2003. Expires Nov 6, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.
Key facts
- Applicant
- Enanta Pharmaceuticals, Inc.
- Grant date
- Expiration
- Claims
- 14
- CPC classes
- A61P, A61P31/04
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Frequently asked questions
What is US patent 6645941?
US 6645941 (6,11-3C-bicyclic 9a-azalide derivatives) is held by Enanta Pharmaceuticals, Inc.. Status: expired. Granted Nov 11, 2003. Expires Nov 6, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.
Who owns US 6645941?
Enanta Pharmaceuticals, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 218 pharmaceutical patents for this assignee.
When does US 6645941 expire?
Our index shows an expiration date of Nov 6, 2023 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.