Patents by Inventor Troy Keipper

Troy Keipper 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).

  • BOW LIFTING BODY WITH DEADRISE
    Publication number: 20090223431
    Abstract: A watercraft has a lifting body secured to its bow below the waterline; the lifting body has deadrise on either side of the bow.
    Type: Application
    Filed: March 6, 2008
    Publication date: September 10, 2009
    Inventors: Steven Loui, Ben Rosenthal, Troy Keipper, Gary Shimozono
  • Bow lifting body
    Patent number: 7191725
    Abstract: A watercraft having a hull, a fore and aft longitudinal axis and a bow includes a three dimensional low drag submerged lifting body secured to the bow below the design waterline of the hull.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: March 20, 2007
    Assignee: Navatek, Ltd.
    Inventors: Steven Loui, Troy Keipper, Gary Shimozono, Scott Yamashita
  • Bow lifting body
    Publication number: 20060169191
    Abstract: A watercraft having a hull, a fore and aft longitudinal axis and a bow includes a three dimensional low drag submerged lifting body secured to the bow below the design waterline of the hull.
    Type: Application
    Filed: January 23, 2006
    Publication date: August 3, 2006
    Inventors: Steven Loui, Troy Keipper, Gary Shimozono, Scott Yamashita
  • Low drag submerged asymmetric displacement lifting body
    Patent number: 7004093
    Abstract: Low drag underwater submerged lifting bodies which can be used as underwater displacement portions of a vessel whose main hull is at sea level are asymmetrical and have improved lift to drag ratios. The lifting bodies have outer surfaces whose shapes are defined in plan and elevation by generally parabolic curves which are different on opposite sides of the lifting bodies.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: February 28, 2006
    Assignee: Navatek, Ltd.
    Inventors: Steven Loui, Gary Shimozono, Troy Keipper
  • Low drag submerged asymmetric displacement lifting body
    Publication number: 20050178310
    Abstract: Low drag underwater submerged lifting bodies which can be used as underwater displacement portions of a vessel whose main hull is at sea level are asymmetrical and have improved lift to drag ratios. The lifting bodies have outer surfaces whose shapes are defined in plan and elevation by generally parabolic curves which are different on opposite sides of the lifting bodies.
    Type: Application
    Filed: April 30, 2004
    Publication date: August 18, 2005
    Inventors: Steven Loui, Gary Shimozono, Troy Keipper