Patents by Inventor Krzysztof A. Kostrzewski

Krzysztof A. Kostrzewski 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).

  • Jet boat with engine-balance system
    Patent number: 8066538
    Abstract: A jet boat comprising an engine-balance system, the engine-balance system comprising a first impeller and a second impeller, wherein water can be driven out of the first impeller for forward motion and water can be selectively driven out of the second impeller, regulated by a balance detecting device, wherein water from the second impeller can provide balance to the jet boat.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: November 29, 2011
    Inventor: Krzysztof A. Kostrzewski