Patents by Inventor Olamay C. Liu

Olamay C. Liu 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).

  • Use of tetrahydro-4-methyl-2-phenyl-2H-pyran as perfuming ingredient
    Patent number: 5219836
    Abstract: Tetrahydro-4-methyl-2-phenyl-2H-pyran is useful as a perfuming ingredient for the preparation of perfuming compositions and perfumed articles, to which it imparts odor notes of the green, rose oxide type.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: June 15, 1993
    Assignee: Firmenich SA
    Inventors: Hugh Watkins, Olamay C. Liu, James A. Krivda