Patents by Inventor William E. Matthews

William E. Matthews 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).

  • Removal of sedimentary constituents from liquids
    Patent number: 4504397
    Abstract: Sedimentary constituents are removed from a liquid by first allowing the liquid to set for a period of time suitable for allowing a substantial proportion of the sedimentary constituents to settle out of the liquid and then pumping the liquid through a filter. After the liquid passes through the filter, the liquid is substantially free of sediment.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: March 12, 1985
    Assignee: Phillips Petroleum Company
    Inventor: William E. Matthews
  • Remote control organizer
    Patent number: D396154
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: July 21, 1998
    Inventor: William E. Matthews