Patents by Inventor Dean De Vries

Dean 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).

  • Patent number: D309541
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: July 31, 1990
    Inventors: Dale De Vries, Dean De Vries
  • Patent number: D310146
    Type: Grant
    Filed: June 1, 1988
    Date of Patent: August 28, 1990
    Inventors: Dale De Vries, Dean De Vries