Patents by Inventor Hugo Boehn

Hugo Boehn 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).

  • Gas-evolving metal electrode
    Patent number: 4557818
    Abstract: A gas-evolving metal electrode consists of profiles which are arranged parallel to one another in a horizontal plane and are connected to one another by means of current distributors. The profile surfaces which face the counter-electrode are curved, the curvature at the sides being more pronounced than that in the middle. The profile is terminated above by means of two lateral surfaces tangential to the curvature. The electrode is useful as an anode for mercury cells for the chloralkali electrolysis.
    Type: Grant
    Filed: July 12, 1984
    Date of Patent: December 10, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Roos, Dieter Schlaefer, Hugo Boehn, Knut Bittler, Heinz Kilthau
  • Bipolar electrodes with graphite as the carrier and their production
    Patent number: 4422921
    Abstract: Bipolar electrodes with graphite as the carrier have a layer of chromium trioxide not less than 10 .mu.m thick on both the anode face and the cathode face.The electrodes are produced by plasma-spraying chromium trioxide powder onto a graphite layer, and can be used as bipolar electrodes in alkali metal chloride electrolysis cells.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: December 27, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Roos, Hugo Boehn, Knut Bittler, Dieter Schlaefer
  • Spinel-containing electrode and process for its production
    Patent number: 4411761
    Abstract: In an electrode suitable for electrolysis of aqueous sodium chloride or potassium chloride solutions, at least the outer layer contains spinels, specifically a mixture of the individual spinels of iron and of cobalt, the weight ratio of iron spinels: cobalt spinels being from 30:70 to 90:10.The electrodes are produced by applying a powder mixture of iron spinel and cobalt spinel to a substrate by a plasma spraying process wherein argon is used as the plasma gas and the spraying energy is from 6 to 30 kW.
    Type: Grant
    Filed: June 24, 1981
    Date of Patent: October 25, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Roos, Hugo Boehn, Knut Bittler, Volker Kiener, Gerd Wunsch
  • Manufacture of electrodes
    Patent number: 4153742
    Abstract: Manufacture of electrodes consisting of bases of valve metals with electrochemically active coatings applied thereto. The electrodes are pre-treated before the said coatings are applied, the pre-treatment comprising treating the base with hydrogen.
    Type: Grant
    Filed: July 8, 1977
    Date of Patent: May 8, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Hugo Boehn, Wolfram Treptow, Gerd Wunsch, Volker Kiener, Hermann Meyer, Gotthard Csizi