Patents by Inventor William R. Willis, Sr.

William R. Willis, Sr. 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).

  • Snowplow attachment
    Patent number: 4459769
    Abstract: An attachment, with self-contained springs, removably attached to the upper edge of a snowplow blade and designed so as to prevent snow from moving over the plow blade while plowing snow and to deflect the snow laterally away from the plow blade.
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: July 17, 1984
    Inventor: William R. Willis, Sr.