Vitzthum; Otto
Patent Applications and Registrations
Patent applications and USPTO patent grants for Vitzthum; Otto.The latest application filed is for "method of extracting coffee oil containing aroma constituents from roasted coffee".
- Vitzthum; Otto - Bremen DE
- Vitzthum; Otto - Bremen-Lesum DT
| Patent | Date |
|---|---|
| Method of extracting coffee oil containing aroma constituents from roasted coffee Grant 4,328,255 - Roselius , et al. * May 4, 1 | 1982-05-04 |
| Method for the manufacture of caffeine free black tea Grant 4,167,589 - Vitzthum , et al. September 11, 1 | 1979-09-11 |
| Process for the extraction of nicotine from tobacco Grant 4,153,063 - Roselius , et al. May 8, 1 | 1979-05-08 |
| Pressure relief valve for packing containers Grant 4,134,535 - Barthels , et al. January 16, 1 | 1979-01-16 |
| Production of hop extracts Grant 4,104,409 - Vitzthum , et al. August 1, 1 | 1978-08-01 |
| Methods of producing cocoa butter Grant 3,923,847 - Roselius , et al. December 2, 1 | 1975-12-02 |
| Process For The Decaffeination Of Raw Coffee Grant 3,879,569 - Vitzthum , et al. April 22, 1 | 1975-04-22 |
| Method For The Production Of Caffeine-free Coffee Extract Grant 3,843,824 - Roselius , et al. October 22, 1 | 1974-10-22 |
| Process For The Removal Of Undesirable Irritants From Raw Coffee Beans Grant 3,770,456 - Roselius , et al. November 6, 1 | 1973-11-06 |
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