Patents by Inventor Walter W. De Brouwer

Walter W. De Brouwer 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).

  • Kinematic optical device
    Patent number: 4197671
    Abstract: This invention relates to a kinematic art form and amusement device that produces a wide variety of pleasing visual illusions through the combination of a rotating patterned body and pulsating light source.
    Type: Grant
    Filed: September 2, 1977
    Date of Patent: April 15, 1980
    Inventor: Walter W. De Brouwer