Patents by Inventor Brett Robin Ogilvie

Brett Robin Ogilvie 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).

  • Rotary piston engine/positive displacement apparatus
    Patent number: 6481410
    Abstract: An engine displacement device including a casing with two internal overlapping rotor chambers, and rotors within the rotor chambers which are arranged to contra rotate to provide internal combustion and/or compression chambers. The casing provides for primary and secondary combustion of a fuel mix, where the device is adapted as a combustion engine.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: November 19, 2002
    Inventor: Brett Robin Ogilvie