Patent intelligence · US
US 6562861
Substituted cyclopentane and cyclopentene compounds useful as neuraminidase inhibitors
Substituted cyclopentane and cyclopentene compounds useful as neuraminidase inhibitors
Patent details — US 6562861
- Jurisdiction
- US
- Status
- expired
- Grant date
- May 13, 2003
- Expiration
- May 8, 2023
- Applicant
- BioCryst Pharmaceuticals, Inc.
- Claims
- 41
- CPC classes
- A61P, A61P31/04, A61P31/12, A61P31/16
Quick answer
US 6562861 (Substituted cyclopentane and cyclopentene compounds useful as neuraminidase inhibitors) is held by BioCryst Pharmaceuticals, Inc.. Status: expired. Granted May 13, 2003. Expires May 8, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.
Key facts
- Applicant
- BioCryst Pharmaceuticals, Inc.
- Grant date
- Expiration
- Claims
- 41
- CPC classes
- A61P, A61P31/04, A61P31/12, A61P31/16, A61P43/00
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Frequently asked questions
What is US patent 6562861?
US 6562861 (Substituted cyclopentane and cyclopentene compounds useful as neuraminidase inhibitors) is held by BioCryst Pharmaceuticals, Inc.. Status: expired. Granted May 13, 2003. Expires May 8, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.
Who owns US 6562861?
BioCryst Pharmaceuticals, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 72 pharmaceutical patents for this assignee.
When does US 6562861 expire?
Our index shows an expiration date of May 8, 2023 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.