Patent intelligence · US
US 8742109
Synthetic methods for spiro-oxindole compounds
Synthetic methods for spiro-oxindole compounds
Patent details — US 8742109
- Jurisdiction
- US
- Status
- granted
- Grant date
- Jun 3, 2014
- Expiration
- May 29, 2034
- Applicant
- Xenon Pharmaceuticals Inc.
- Claims
- 6
- CPC classes
- A61P, A61P25/00, A61P25/04
Quick answer
US 8742109 (Synthetic methods for spiro-oxindole compounds) is held by Xenon Pharmaceuticals Inc.. Status: granted. Granted Jun 3, 2014. Expires May 29, 2034 (8 years remaining) — relevant for patent-cliff and LOE planning.
Key facts
- Applicant
- Xenon Pharmaceuticals Inc.
- Grant date
- Expiration
- Claims
- 6
- CPC classes
- A61P, A61P25/00, A61P25/04
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Frequently asked questions
What is US patent 8742109?
US 8742109 (Synthetic methods for spiro-oxindole compounds) is held by Xenon Pharmaceuticals Inc.. Status: granted. Granted Jun 3, 2014. Expires May 29, 2034 (8 years remaining) — relevant for patent-cliff and LOE planning.
Who owns US 8742109?
Xenon Pharmaceuticals Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 106 pharmaceutical patents for this assignee.
When does US 8742109 expire?
Our index shows an expiration date of May 29, 2034 (8 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.