Patents by Inventor Heinz M. Becher

Heinz M. Becher 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 benzoyl ureas
    Patent number: 4918227
    Abstract: Benzoyl ureas of the formula ##STR1## are prepared by starting from benzoyl derivatives of the formulaQ-COHalwhich are converted via the corresponding azides into the isocyanates, which are in turn reacted with corresponding benzamides.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: April 17, 1990
    Assignee: Shell Internationale Research Naatschappy B.V.
    Inventors: Heinz M. Becher, Rudolf Mengel, Walter Ost