Patents by Inventor Earl H. Gray

Earl H. Gray 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).

  • Cracking process
    Patent number: 4396496
    Abstract: Antimony compounds are employed to reduce catalyst attrition and improve catalyst performance in catalytic cracking units, especially in conjunction with strontium compounds.
    Type: Grant
    Filed: July 21, 1981
    Date of Patent: August 2, 1983
    Assignee: Phillips Petroleum Company
    Inventors: David R. Scharf, Earl H. Gray