Patents by Inventor Weldon Wright Harcum

Weldon Wright Harcum 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).

  • Process for making toothpaste using agglomerated dispersible polymers
    Patent number: 6258342
    Abstract: An improved process for preparing an oral care composition of mixing at least one dry oral care ingredient and a dry water-soluble or water-swellable polymer, the improvement is by replacing the dry, water-soluble or water-swellable polymer with a particulate water-soluble or water-swellable polymer which has been at least partially agglomerated by treatment with water or an aqueous solution of polymer(s) and drying the agglomerated particles.
    Type: Grant
    Filed: November 3, 1999
    Date of Patent: July 10, 2001
    Assignee: Hercules Incorporated
    Inventors: Weldon Wright Harcum, Jashawant J. Modi