Patents by Inventor Richard F. Lippoldt

Richard F. Lippoldt 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).

  • Thermally stable smoke suppressant additives to polymeric compositions
    Patent number: 4264364
    Abstract: A polymer composition which includes, as a smoke suppressing additive, a complex of a Friedel-Crafts halide compound with an organic compound selected from the group which includes quaternary ammonium compounds, quaternary phosphonium compounds, tertiary sulfonium compounds, organic orthosilicates and the partially hydrolyzed derivatives of organic orthosilicates, or a combination of these.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: April 28, 1981
    Assignee: Indian Head Inc.
    Inventor: Richard F. Lippoldt