Patents by Inventor Robert Gipe

Robert Gipe 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 producing silicon-containing aromatic polyacids
    Patent number: 4940810
    Abstract: An improved process is disclosed for preparation of silicon-containing aromatic polyacids by liquid phase oxidation of a mono- or polyalkyl substituted diaryldialkylsilane in the presence of oxygen and a catalyst comprising cobalt-manganese-bromine. Bis(p-tolyl)dimethylsilane is oxidized to bis(p-carboxyphenyl)dimethylsilane and bis(3,4-dimethylphenyl)-dimethylsilane is oxidized to bis(3,4-dicarboxylphenyl)dimethylsilane.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: July 10, 1990
    Assignee: Amoco Corporation
    Inventors: Howard B. Yokelson, Walter Partenheimer, Robert Gipe