Patents by Inventor Robert W. Bonsan

Robert W. Bonsan 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).

  • Fluid filter
    Patent number: 5975312
    Abstract: A full-flow filter is disclosed and which comprises a screen or element housed between two body halves. The construction of the filter is such that fluid to be filtered enters and exits the filter body from the same side thereof.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: November 2, 1999
    Assignee: Black, Sivalls & Bryson, Limited (Canada)
    Inventor: Robert W. Bonsan