Patents by Inventor Fred Burtlett

Fred Burtlett 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).

  • Adjustable height liquid level management tools and systems
    Publication number: 20090320569
    Abstract: A lift mechanism positioned on a tank containing potentially explosive gases, corrosive material and/or poisonous material with the motor of the mechanism on top of the lift and more than 5 feet away from any vent or outlet of the tank and one or more devices inside the tank being moved and positioned by the lift mechanism.
    Type: Application
    Filed: May 15, 2008
    Publication date: December 31, 2009
    Inventors: Keith R. Haslem, Lee B. Golter, Fred Burtlett