Patents by Inventor David H. Denton

David H. Denton 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: D257402
    Type: Grant
    Filed: October 31, 1978
    Date of Patent: October 14, 1980
    Inventors: David H. Denton, David D. Purdom