Patents by Inventor Hayat Khowaja

Hayat Khowaja 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).

  • Process for the preparation of phenylpyruvic acid from benzyl chloride
    Patent number: 4948920
    Abstract: A process for producing phenylpyruvic acid by reacting benzyl chloride with carbon monoxide in the presence of a catalytic amount of a metal carbonyl compound and an inorganic base, in an acetonitrile/water solvent.
    Type: Grant
    Filed: March 24, 1989
    Date of Patent: August 14, 1990
    Assignee: The NutraSweet Company
    Inventors: Clark R. Landis, Hayat Khowaja