Chung; Hoi Sing
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chung; Hoi Sing.The latest application filed is for "plant extracts and alkaloids having antitussive activity".
- Chung; Hoi Sing - Hong Kong CN
| Patent | Date |
|---|---|
| Plant extracts and alkaloids having antitussive activity Grant 6,992,078 - Lin , et al. January 31, 2 | 2006-01-31 |
| Plant extracts and alkaloids having antitussive activity App 20050256101 - Lin, Ge ; et al. | 2005-11-17 |
| Plant extracts and alkaloids having antitussive activity App 20030229071 - Lin, Ge ; et al. | 2003-12-11 |
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