Patents by Inventor Gary L. Speenburgh

Gary L. Speenburgh 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).

  • Continuous process for preparation of aqueous dispersions of metal soaps
    Patent number: 5191098
    Abstract: The invention is a process for preparing an aqueous dispersion of a metal soap by reacting a metal oxide or hydroxide with an organic acid in the presence of a dispersing agent in a media mill.
    Type: Grant
    Filed: December 5, 1991
    Date of Patent: March 2, 1993
    Assignee: Henkel Corporation
    Inventors: H. Steve Koenig, Gary L. Speenburgh
  • Monomer purification
    Patent number: 4751322
    Abstract: The monomer, trimethyl ammonium ethyl methacrylate methosulfate, is purified by passing same through a column of activated charcoal having a mean particle diameter of from about 0.5 mm to aboug 1.2 mm, the height to diameter ratio of the column being from about 3 to about 12 to 1. Monomer so treated can be polymerized to higher molecular weight polymers.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: June 14, 1988
    Assignee: Diamon Shamrock Chemical Co.
    Inventors: Stephen A. Fischer, Dinshaw F. Bardoliwalla, Reuben H. Grinstein, Gary L. Speenburgh