Patents by Inventor Karl-Heinz Hammer

Karl-Heinz Hammer 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 arylbenzylamines
    Patent number: 5536877
    Abstract: A process for the preparation of arylbenzylamines by the reaction of arylamines with a benzyl chloride, wherein the reaction is carried out in the presence of both a phase-transfer catalyst and a base selected from the group consisting of the inorganic bases and salts of weak organic acids.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl-Heinz Hammer, Gerd Husslein