Ronald S. Fenn

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New Providence, NJ, US

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Patents Grantslast 30 patents

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Schiff base reaction product of ethyl vanillin and methyl anthranil...
- Patent number 5,008,437
- Issue date Apr 16, 1991
- International Flavors & Fragrances Inc.
- Braja D. Mookherjee
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Polyalkyl indanyl n-propyl and allyl ethers and perfumery uses thereof
- Patent number 4,902,672
- Issue date Feb 20, 1990
- International Flavors & Fragrances Inc.
- Mark A. Sprecker
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Schiff base reaction product of ethyl vanillin and methyl anthranil...
- Patent number 4,853,369
- Issue date Aug 1, 1989
- International Flavors & Fragrances Inc.
- Braja D. Mookherjee
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Alkanoic acid esters of 3,4,5,6,6-pentamethyl heptanol-2 and alkyl...
- Patent number 4,524,783
- Issue date Jun 25, 1985
- International Flavors & Fragrances Inc.
- Wilhelmus J. Wiegers
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES