US 9327258
Porous silica-based particles having smooth surface, method for production thereof and cosmetic comprising such particles
granted A61KA61K2800/412A61K8/025
Quick answer
US patent 9327258 (Porous silica-based particles having smooth surface, method for production thereof and cosmetic comprising such particles) held by JGC Catalysts and Chemicals Ltd. expires Mon Apr 28 2036 00:00:00 GMT+0000 (Coordinated Universal Time). Status: granted.
Key facts
- Applicant
- JGC Catalysts and Chemicals Ltd.
- Grant date
- Tue May 03 2016 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Apr 28 2036 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 13
- CPC classes
- A61K, A61K2800/412, A61K8/025, A61K8/0279, A61K8/25