Patents by Inventor Paul W. W. Clarke

Paul W. W. 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).

  • Method and machine for changing agricultural mulch
    Patent number: 6308455
    Abstract: A method and machine for changing or renewing the color and/or light reflection, transmission, and absorption characteristics of an existing layer of synthetic agricultural mulch or prolonging the usefulness of the existing mulch by applying a layer of new mulch to the pre-existing mulch in a cultivated field using heat welding/fusion or adhesive or mechanical fastening for attachment of new mulch to existing mulch and at least one blower for clearing debris from the existing mulch prior to application of new mulch, with the machine being able to be drawn by a tractor, laborer, or draft animal.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: October 30, 2001
    Inventors: Paul W. W. Clarke, Timothy M. Scruby
  • Method and machine for changing agricultural mulch
    Publication number: 20010010135
    Abstract: A method and machine for changing or renewing the color and/or light reflection, transmission, and absorption characteristics of an existing layer of synthetic agricultural mulch or prolonging the usefulness of said existing mulch by applying a layer of new mulch to the preexisting mulch in a cultivated field using heat welding/fusion or adhesive or mechanical fastening for attachment of new mulch to existing mulch and at least one blower for clearing debris from the existing mulch prior to application of new mulch, with the machine being able to be drawn by a tractor, laborer, or draft animal.
    Type: Application
    Filed: March 19, 2001
    Publication date: August 2, 2001
    Inventors: Paul W.W. Clarke, Timothy M. Scruby
  • Method and machine for changing agricultural mulch
    Patent number: 6202344
    Abstract: A method and machine for changing or renewing the color and/or light reflection, transmission, and absorption characteristics of an existing layer of synthetic agricultural mulch or prolonging the usefulness of the existing mulch by applying a layer of new mulch to the pre-existing mulch in a cultivated field using heat welding/fusion or adhesive or mechanical fastening for attachment of new mulch to existing mulch and at least one blower for clearing debris from the existing mulch prior to application of new mulch, with the machine being able to be drawn by a tractor, laborer, or draft animal.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: March 20, 2001
    Inventors: Paul W. W. Clarke, Timothy M. Scruby