Patents by Inventor Dennis A. Van Wyk

Dennis A. Van Wyk 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).

  • Welding helmet
    Patent number: D308266
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: May 29, 1990
    Inventor: Dennis A. Van Wyk
  • Welding helmet
    Patent number: D308586
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: June 12, 1990
    Inventor: Dennis A. Van Wyk