Patents by Inventor Walter S. Halbach

Walter S. Halbach 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).

  • Colored metallic pigments
    Patent number: 5558705
    Abstract: A colored metallic pigment composition includes metallic particles which have been treated with a mixture of pigment particles and wax. A polymeric shell is formed on the treated metal particles by means of an organometallic coupling agent. The coupling agent includes a readily-hydrolyzable group which is capable of binding to the metal particle surface, and a relatively non-hydrolyzable group which serves as a binding site for the polymeric shell.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: September 24, 1996
    Assignee: Silberline Manufacturing Co., Inc.
    Inventors: Craig B. Keemer, Walter S. Halbach, William G. Jenkins, Russell L. Ferguson