Patents by Inventor James Stewart Grant

James Stewart Grant 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).

  • Exhaust system for an internal combustion engine
    Patent number: 8707689
    Abstract: An exhaust system for an internal combustion engine including an elongated tube for receiving exhaust gas and exhaust flow modification structure within the tube interior configured to cooperate with the elongated tube to produce a laminar flow of exhaust gas and modify the flow speed of the exhaust gas due to the venturi effect.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: April 29, 2014
    Assignee: Northern California Diagnostic Laboratories, Inc.
    Inventors: Michael Spencer-Smith, James Stewart Grant, Louis Walch, Adam Weidauer