Patents by Inventor Roland Gerner

Roland Gerner 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 wear-resistant hard material layers on metallic supports
    Patent number: 5354578
    Abstract: Wear-resistant hard material layers are prepared on a metal support by applying onto said support a mixture of hard material particles, solder particles and organic binding agents and thereafter soldering the layer by heating. The mixture thus obtained can be applied by means of immersing, screen printing, brushing, spraying or spreading. The stable suspension required for the above steps is prepared by homogeneously grinding the particles together to a particle size from 1 to 20 .mu.m and adding an organic solvent to the binding agent.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: October 11, 1994
    Assignee: Degussa Aktiengesellschaft
    Inventors: Hans-Hermann Beyer, Roland Gerner, Wolfgang Weber, Klaus Zimmermann
  • Process for the separation of rhodium from organic solutions
    Patent number: 5256188
    Abstract: A process for the separation of rhodium from rhodium containing organic solutions, organic-aqueous mixtures or aqueous solutions containing complexing agents is disclosed. Metallic bismuth, bismuth oxide, bismuth hydroxide or another reducible bismuth compound is added to 50.degree. to 250.degree. C. as a precipitating agent, optionally with a reducing agent, and the precipitate is separated. The corresponding antimony compounds can also be used in place of bismuth.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: October 26, 1993
    Assignee: Degussa Aktiengesellschaft
    Inventors: Ingo Kleinwachter, Karlheinz Kleiss, Roland Gerner
  • Method of producing dustfree silver nitrate
    Patent number: 5196178
    Abstract: In order to produce dustfree silver nitrate which can be readily dosed, silver nitrate is atomized in a molten state. A purity of the silver nitrate of greater than 99%, a pH of 2 to 6, and the exclusion of light during the atomizing are necessary.
    Type: Grant
    Filed: October 8, 1991
    Date of Patent: March 23, 1993
    Assignee: Degussa Aktiengesellschaft
    Inventors: Dieter Hollmann, Roland Gerner