Patents by Inventor Robert D. Lindquist

Robert D. Lindquist 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).

  • Soap bar manufacture
    Patent number: 3976736
    Abstract: An improved process and apparatus system for continuously forming soap bars which are resistant to marring during wrapping and packaging thereof comprising cooling shaped soap billets with a cooling fluid at a velocity thereof and for a time sufficient to harden at least the surface of said billets to the degree which resists marring by subsequent wrapping and packaging.
    Type: Grant
    Filed: March 11, 1974
    Date of Patent: August 24, 1976
    Assignee: Avon Products, Inc.
    Inventors: Wayne H. Paris, Ronald C. Wolfe, Terrence P. Fay, Robert D. Lindquist