Patents by Inventor Brian W. Buffham

Brian W. Buffham 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).

  • Pressure relief device
    Patent number: 4819683
    Abstract: A pressure release device for sealably mounting on a vessel adapted to contain a fluid under pressure not to exceed a predetermined maximum pressurization limit.
    Type: Grant
    Filed: January 29, 1988
    Date of Patent: April 11, 1989
    Assignee: Petrolite Corporation
    Inventors: Brian W. Buffham, Daniel J. Marquardt