Patents by Inventor Henry S. Kao

Henry S. Kao 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 4-methylthiazole
    Patent number: 4111948
    Abstract: Process for desulfurization of thiazoles including the removal of the mercapto group from 2-mercaptothiazoles and 2-mercaptobenzothiazoles and their derivatives by the oxidation with oxygen in the presence of an oxidation catalyst.
    Type: Grant
    Filed: November 26, 1976
    Date of Patent: September 5, 1978
    Assignee: Merck & Co., Inc.
    Inventors: Henry S. Kao, William A. Sklarz, Leonard M. Weinstock