Patents by Inventor Ulrich Kreft

Ulrich Kreft 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).

  • Shielding device to reduce wind velocity
    Patent number: 4529173
    Abstract: A shielding device to reduce wind velocity, in particular for the deposition of drifting sand or snow, has several plane elements which may be erected next to each other at an approximate right angle to the oncoming direction of the wind. The height of the individual plane elements amounts to at least twice the width of their base, whereas their width decreases as the height increases.
    Type: Grant
    Filed: December 16, 1983
    Date of Patent: July 16, 1985
    Inventors: Carl Kramer, Hans-Joachim Gerhardt, Ulrich Kreft