Patents by Inventor Ulrich Herrmann

Ulrich Herrmann 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 producing a directly heated cathode
    Patent number: 5256097
    Abstract: A process providing a cathode coil made of tungsten and fastening it to molybdenum straps by brazing with platinum by supplying thermal energy in a punctiform manner.
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: October 26, 1993
    Assignee: Licentia Patent-Verwaltungs-GmbH
    Inventor: Ulrich Herrmann
  • Folding box with an integrated dispenser
    Patent number: 4778102
    Abstract: A folding box with an integrated dispenser and pouring opening for powder products and granulates to provide for uniform dispensing, even during the first dispensing process, and to be made in one piece on erection of the folding box from a flat box blank. The dispenser has a dispensing duct wall which extends over the entire width of the pouring side wall transversely of the pouring opening and which is cut below the height of the pouring opening and displaced parallel into the interior of the box to form a wall of the dispensing chamber. The wall of the dispensing chamber is fixed at the base of the dispensing chamber by means of a pressure tongue secured to the pouring side wall.
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: October 18, 1988
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Bernhard Bongers, Horst Bertram, Dierk-Ulrich Herrmann, Werner Kuenzel
  • Process for the production of benzanthrone
    Patent number: 4559176
    Abstract: The invention describes a process for the production of benzanthrone by reacting anthraquinone with glycerol and/or acrolein, using anthrone as reducing agent.Benzanthrone is an important intermediate for dyes and is used in particular for the preparation of vat dyes.
    Type: Grant
    Filed: July 9, 1984
    Date of Patent: December 17, 1985
    Assignee: Ciba Geigy AG
    Inventors: Martin Burli, Jacques Bersier, Eric Plattner, Hans-Ulrich Herrmann