Patents by Inventor Harold W. Fleming

Harold W. Fleming 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).

  • Reforming of hydrocarbons in the presence of sulfur
    Patent number: 4483693
    Abstract: Hydrogen sulfide replaces a portion of the water required to suppress the formation of carbon in gas phase catalytic reforming and hydrocracking of hydrocarbons, particularly aromatics. Hydrogen is present to prevent carbon formation from the aromatic hydrocarbons. The support used for the catalyst is a gamma alumina, delta alumina, theta alumina or mixtures thereof.
    Type: Grant
    Filed: May 20, 1982
    Date of Patent: November 20, 1984
    Assignee: The Ralph M. Parsons Co.
    Inventors: Gerald A. White, Theodore R. Roszkowski, Harold W. Fleming
  • Sulfur control over carbon formation in high temperature reforming operations
    Patent number: 3999961
    Abstract: Hydrogen sulfide replaces a portion of the water required to suppress the formation of carbon in gas phase catalytic reforming and hydrocracking processes of hydrocarbons, particularly aromatics. Hydrogen is present to prevent carbon formation from the hydrocarbons.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: December 28, 1976
    Assignee: Ralph M. Parsons Company
    Inventors: Gerald A. White, Theodore R. Roszkowski, Harold W. Fleming