Patents by Inventor David Carnell

David Carnell 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).

  • Liquid mulch
    Patent number: 4705816
    Abstract: The disadvantages associated with using plastic sheet mulch may be overcome and enhanced crop production obtained by applying to an agricultural domain an aqueous compound capable of forming a durable crust under the condition of use comprising per 100 parts by weight of polymeric binder from about 100 to about 1,600 parts by weight of a fine particulate filler to provide a dry coat weight from 0.1 to 5.0 ounces per square foot.
    Type: Grant
    Filed: April 16, 1986
    Date of Patent: November 10, 1987
    Assignee: Polysar Limited
    Inventors: Ernest G. Pole, David Carnell