Patents by Inventor Howard Y. Clarke

Howard Y. Clarke 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: 4420901
    Abstract: A mobile implement for flame treating soil. The implement includes an elongated tube member for being pulled over the ground to be treated, a scoop for digging soil from the ground as the tube member is pulled thereover, an auger or screw for conveying the soil through the tube, and a burner for subjecting the soil being conveyed through the tube member to flame substantially along the entire length of the tube member.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: December 20, 1983
    Inventor: Howard Y. Clarke