Patents by Inventor Heinrich Kuhlmann

Heinrich Kuhlmann 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 the preparation of ketones
    Patent number: 4035395
    Abstract: The invention concerns a new process for the preparation of ketones; according to this process ketones are prepared from aldehydes and unsaturated compounds in the presence of bases using quaternary ammonium salts as catalysts.
    Type: Grant
    Filed: July 24, 1975
    Date of Patent: July 12, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hermann Stetter, Heinrich Kuhlmann