Patents by Inventor Horst Behre

Horst Behre 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 aminonaphthalenesulphonic acids
    Patent number: 4163752
    Abstract: A process has been invented for the preparation of aminonaphthalenesulphonic acids by the catalytic hydrogenation of salts of nitronaphthalenesulphonic acids with hydrogen in the presence of Raney nickel catalysts at elevated temperature and pressure, said catalysts comprising a combination of fresh Raney nickel catalyst and Raney nickel catalyst which has already been used in prior hydrogenation or hydrogenations.
    Type: Grant
    Filed: January 11, 1978
    Date of Patent: August 7, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Otto Barth, Hans-Joachim Becker, Horst Behre, Reinhard Kaiser, Guido Steffan, Jurgen Zander