Patents by Inventor William B. Hansford

William B. Hansford 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).

  • Sprayable hydromulch
    Patent number: 4297810
    Abstract: The present invention is directed to a sprayable hydromulch which is effective in reclaiming land, and which is particularly useful in planting seed to establish ground cover on reclaimed strip mining areas.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: November 3, 1981
    Inventor: William B. Hansford