Patents by Inventor Werner Koehler

Werner Koehler 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).

  • Coating formulation having improved rheological properties
    Patent number: 8038787
    Abstract: The present invention relates to coating formulations comprising surface-modified silicon dioxides. The coating formulations are useful in applications such as architectural paints for buildings, windows and doors.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: October 18, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Hans-Dieter Christian, Reinhard Behl, Hans-Werner Köhler, Jürgen Meyer
  • Lacquer formulation for improving surface properties
    Patent number: 7842129
    Abstract: A coating formulation containing at least one surface-modified silicon dioxide having a 60° reflectometer value of <3 and a black number My of at least 140 has excellent performance properties, for example, a very good transparency.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: November 30, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Hans-Dieter Christian, Reinhard Behl, Hans-Werner Köhler, Uwe Schmeier, Jürgen Meyer
  • Coating formulation having improved rheological properties
    Publication number: 20050282935
    Abstract: The present invention relates to coating formulations comprising surface-modified silicon dioxides. The coating formulations are useful in applications such as architectural paints for buildings, windows and doors.
    Type: Application
    Filed: June 16, 2005
    Publication date: December 22, 2005
    Applicant: DEGUSSA AG
    Inventors: Hans-Dieter Christian, Reinhard Behl, Hans-Werner Koehler, Juergen Meyer
  • Current distributor
    Patent number: 6400559
    Abstract: The described current distributor has a bus bar, a plug socket connected to the bus bar, at least one contact element which comprises an access connection, a consumer tapping and an element connecting the access connection and the consumer tapping, at least one plug connection for the plug contacts of a protective switch, which has a plug socket of the bus bar and an access socket of a contact element, and two signaling lines. In order to produce such a current distributor inexpensively and to ensure reliability of operation, it is provided in accordance with the invention that the contact element comprises a one-piece member.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: June 4, 2002
    Assignee: EFEN Elektrotechnische Fabrik GmbH
    Inventors: Klaus Werner Köhler, Jürgen Fischbach, Christian Kölbel, Günther Horaczek
  • Semiconductor module
    Patent number: 5508560
    Abstract: A semiconductor module includes a metal base plate having a plane upper sace and a convex lower surface. An electrically insulating and thermally conductive substrate is material-lockingly connected to the upper surface of the metal base plate. Semiconductor chips are material-lockingly connected to an upper surface of the substrate.
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: April 16, 1996
    Assignee: Eupec Europaeische Gesellschaft Fuer Leistungs-Halbletter mbh & Co. KG
    Inventors: Werner Koehler, Reinhold Spanke