Patents by Inventor Robert C. Ryan

Robert C. Ryan 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).

  • Patent number: 4439624
    Abstract: A process is disclosed for oxidizing dimethyl ether to formaldehyde using a catlyst comprising a mixture of oxides of bismuth, molybdenum and copper.
    Type: Grant
    Filed: October 7, 1982
    Date of Patent: March 27, 1984
    Assignee: Shell Oil Company
    Inventors: Robert M. Lewis, Robert C. Ryan, Lynn H. Slaugh
  • Patent number: 4417000
    Abstract: Dimethyl ether is produced from syngas in high yield utilizing a physical mixture of two catalyst components: a first component comprising copper-zinc and alkali metal supported on alumina, and a second component comprising tungsten oxide supported on silica-alumina.
    Type: Grant
    Filed: August 4, 1982
    Date of Patent: November 22, 1983
    Assignee: Shell Oil Company
    Inventors: Lynn H. Slaugh, Robert C. Ryan