Patents by Inventor Doris J. Brecht

Doris J. Brecht 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).

  • Silicone foam control compositions
    Patent number: 5543082
    Abstract: There is disclosed a foam control composition comprising (I) a silicone defoamer reaction product and (II) a silicone glycol copolymer, which composition is particularly effective in defoaming highly acidic or highly basic aqueous systems. The compositions of the present invention can further comprise (III) a finely divided filler, and/or (IV) a trimethylsilyl or hydroxyl endblocked polyorganosiloxane.
    Type: Grant
    Filed: September 13, 1993
    Date of Patent: August 6, 1996
    Assignee: Dow Corning Corporation
    Inventors: James B. McGee, Lenin J. Petroff, Doris J. Brecht, William J. Ollinger, deceased, by John M. Ollinger, legal representative