Inventor · disambiguated record
Otto Vitzthum
Also filed as: HUBERT PETER · VITZTHUM OTTO · VITZTHUM OTTO G
13 granted patents·672 citations·filing 1973–1997
94Inventor score
Top patents by PatentIndex Score
13 records- 0196US4153063AProcess for the extraction of nicotine from tobaccoSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1973·Granted May 8, 1979·208 cites·32 claims
- 0295US4134535APressure relief valve for packing containersHAG AG·Filed 1978·Granted Jan 16, 1979·162 cites·10 claims
- 0392US4104409AProduction of hop extractsSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1976·Granted Aug 1, 1978·46 cites·40 claims
- 0484US4123559AProcess for the production of spice extractsSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1976·Granted Oct 31, 1978·40 cites·9 claims
- 0579US4198432AProcess for the production of spice extractsSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1978·Granted Apr 15, 1980·33 cites·13 claims
- 0672US4167589AMethod for the manufacture of caffeine free black teaVITZTHUM OTTO·Filed 1977·Granted Sep 11, 1979·33 cites·19 claims
- 0770US4328255AMethod of extracting coffee oil containing aroma constituents from roasted coffeeSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1977·Granted May 4, 1982·24 cites·3 claims
- 0867US5225223AProcess for the preparation of soluble coffeeJACOBS SUCHARD AG·Filed 1991·Granted Jul 6, 1993·45 cites·9 claims
- 0964US4540784ARecovery of caffeine adsorbed to activated carbonHAG AG·Filed 1983·Granted Sep 10, 1985·5 cites·4 claims
- 1063US4411923AProcess for the extraction of caffeine from super-critical solutionsHAG AG·Filed 1981·Granted Oct 25, 1983·24 cites·7 claims
- 1162US6054162AStabilization of liquid coffee by treatment with alkaliKRAFT FOODS INC·Filed 1997·Granted Apr 25, 2000·35 cites·22 claims
- 1237US4703874AMetering device for powdered materialGEN FOODS HAG·Filed 1986·Granted Nov 3, 1987·13 cites·4 claims
- 1322US6025002AMethod of removing off-notes from cocoa productsKRAFT FOODS INC·Filed 1997·Granted Feb 15, 2000·4 cites·10 claims
Join the waitlist — get patent alerts
Get an alert when Otto Vitzthum files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →