Cowles; John M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cowles; John M..The latest application filed is for "light stable hop extracts and method of preparation".
- Cowles; John M. - Whitefish Bay WI
| Patent | Date |
|---|---|
| Light stable hop extracts and method of preparation Grant 4,767,640 - Goldstein , et al. August 30, 1 | 1988-08-30 |
| Preparation of tetrahydroisohumulones Grant 4,644,084 - Cowles , et al. February 17, 1 | 1987-02-17 |
| Process for separation of beta-acids from extract containing alpha-acids and beta-acids Grant 4,590,296 - Cowles , et al. May 20, 1 | 1986-05-20 |
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