Patents by Inventor Govert De Vries

Govert De Vries 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).

  • Method for measuring parameters and a striking device
    Publication number: 20050239583
    Abstract: The invention relates to a method for measuring and computing of a striking device, such as a tennis racquet. The velocity of the striking device is determined by measuring the acceleration in at least one direction, preferably a centripetal direction, and computing said velocity from said acceleration.
    Type: Application
    Filed: March 7, 2003
    Publication date: October 27, 2005
    Inventors: Erik Damen, Govert De Vries