US 6800778
Process for producing optically active naphthalene derivative and optical resolver therefor
expired A61KA61K31/4164A61P
Quick answer
US patent 6800778 (Process for producing optically active naphthalene derivative and optical resolver therefor) held by Takeda Chemical Industries Ltd. expires Mon Sep 30 2024 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Takeda Chemical Industries Ltd.
- Grant date
- Tue Oct 05 2004 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Sep 30 2024 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 2
- CPC classes
- A61K, A61K31/4164, A61P, A61P13/08, A61P15/06