Patents by Inventor Robert Leser

Robert Leser 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).

  • Preparation of organopolysiloxane polymers
    Patent number: 4113760
    Abstract: An improved process for converting organopolysiloxane polymers which comprises reacting halosilanes which organopolysiloxanes in the presence of activated charcoal and if desired, an inorganic acid.
    Type: Grant
    Filed: June 22, 1977
    Date of Patent: September 12, 1978
    Assignee: Wacker-Chemie GmbH
    Inventors: Volker Frey, Rudolf Riedle, Peter John, Gerhard Kalchgruber, Helmut Spork, Robert Leser