Patents by Inventor Melvyn I. Simpson

Melvyn I. Simpson 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).

  • 7-Alkoxy-1,2-benzopyrones as tobacco flavorants
    Patent number: 4163453
    Abstract: A process for improving, enhancing or modifying the organoleptic properties of tobacco products which comprises adding thereto a compound possessing the following formula: ##STR1## wherein R represents a straight or branched-chain alkyl, alkenyl or cyclic aliphatic or aromatic hydrocarbon group having less than 8 carbon atoms.
    Type: Grant
    Filed: October 12, 1976
    Date of Patent: August 7, 1979
    Assignee: Liggett Group Inc.
    Inventors: Andrew G. Kallianos, Melvyn I. Simpson