Patents by Inventor Donald W. Wissman

Donald W. Wissman 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).

  • Tessellatable brick
    Patent number: D541435
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: April 24, 2007
    Inventor: Donald W. Wissman
  • Tessellatable brick
    Patent number: D541436
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: April 24, 2007
    Inventor: Donald W. Wissman