Patents by Inventor Hsiao-Chiung Szabo

Hsiao-Chiung Szabo 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).

  • Preparation of 3-methylpyridine from 2-methylglutaronitrile
    Patent number: 5066809
    Abstract: Disclosed is a process for making 3-methylpyridine by contacting 2-methylglutaronitrile in admixture with hydrogen gas with a supported solid catalyst containing palladium metal promoted with at least one of Cr, W, Ni, Co and Ge.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: November 19, 1991
    Assignee: The Standard Oil Company
    Inventors: Dev D. Suresh, Robert DiCosimo, Richard Loiseau, Maria S. Friedrich, Hsiao-Chiung Szabo
  • Process for oxidation of benzene to phenol precursor
    Patent number: 4861911
    Abstract: Benzene is oxidized to produce the phenyl ester of a perfluoromonocarboxylic acid by reaction with H.sub.2 O.sub.2, a perfluoro acid or a combination of acetaldehyde and molecular oxygen, in the presence of (1) a cobalt salt of an organic acid catalyst and (2) a perfluoromonocarboxylic acid solvent.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: August 29, 1989
    Assignee: The Standard Oil Company
    Inventors: Robert DiCosimo, Hsiao-Chiung Szabo
  • Process for oxidation of benzene to phenol precursor
    Patent number: 4783550
    Abstract: Benzene is oxidized to produce the phenyl ester of a perfluoromonocarboxylic acid by reaction with H.sub.2 O.sub.2, a perfluoro acid or a combination of acetaldehyde and molecular oxygen, in the presence of (1) a cobalt salt of an organic acid catalyst and (2) a perfluoromonocarboxylic acid solvent.
    Type: Grant
    Filed: July 1, 1985
    Date of Patent: November 8, 1988
    Assignee: The Standard Oil Company
    Inventors: Robert DiCosimo, Hsiao-Chiung Szabo