Patents by Inventor Igor Alexander Pelse

Igor Alexander Pelse has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Flavoring foodstuffs using sulfur-containing compounds
    Patent number: 3959509
    Abstract: The flavor of a foodstuff is altered, modified or enhanced by the addition thereto of one of the four compounds, the structure of which is one of the configurations of 3((2-mercapto-1-methylpropyl) thio)-2-butanol represented by the structures: ##SPC1##Each of these configurations produced by the process described herein, of reacting either a cis or trans 2,3 butane episulfide with an "erythro" or "threo" 2-hydroxy-3-mercapto butane, represented by the structures: ##SPC2##
    Type: Grant
    Filed: May 21, 1975
    Date of Patent: May 25, 1976
    Assignee: International Flavors & Fragrances Inc.
    Inventors: William John Evers, Manfred Hugo Vock, Igor Alexander Pelse