Patents by Inventor Robert E. Markwood

Robert E. Markwood 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).

  • Filler for pressure vessel
    Patent number: 4165012
    Abstract: In a pressure vessel having domed ends concave to the pressure, in certain situations, the space within the domes is undesirable. One or both ends may be equipped with space-filling inserts comprising multiple plates of aluminum or other light metal secured in slightly spaced parallel relationship.
    Type: Grant
    Filed: December 7, 1977
    Date of Patent: August 21, 1979
    Assignee: Philip Morris Incorporated
    Inventor: Robert E. Markwood