Patents by Inventor Bobby G. Hendricks

Bobby G. Hendricks 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).

  • Formaldehyde manufacturing process
    Patent number: 4076754
    Abstract: In a process for the manufacture of formaldehyde by the silver-catalyzed oxidation of methanol in two stages, a composite catalyst is used in the second oxidation stage, which is prepared by sintering an upstream layer of foraminous silver having a void volume of 75 to 90% contiguous to a downstream layer of crystalline silver particles having a void volume of 65 to 75% which is at least about 5% below the void volume of the upper layer.
    Type: Grant
    Filed: January 20, 1976
    Date of Patent: February 28, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Gary L. Kiser, Bobby G. Hendricks