Patents by Inventor Klaus Wybrands

Klaus Wybrands 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 production of carbon molecular sieves
    Patent number: 5248651
    Abstract: A process for producing carbon molecular sieves for the separation of oxygen and nitrogen, whereby finely ground hard coal particles are oxidized with air in a fluidized bed, the coal is then formed after the addition of water and binders and carbonized at temperatures of 800.degree.-900.degree. C., subsequently activated with steam at temperatures of 800.degree.-900.degree. C. and the preliminary product of the low-level activation is treated with carbon splitting hydrocarbons. Starches obtained by reacting agglutinized starches with sulphamates are used as binders.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: September 28, 1993
    Assignee: Bergwerksverband GmbH
    Inventors: Klaus D. Henning, Wolfgang Bongartz, Klaus Wybrands, Josef Degel, Karl K. Knoblauch, Alois Ziegler
  • Method of manufacturing adsorbents
    Patent number: 4491609
    Abstract: A carbonaceous adsorbent impreganted with elementary sulfur is produced by mixing the adsorbent with elementary sulfur in a quantity required for the desired impregnation, heating the mixture to a temperature between 120.degree. and 300.degree. C., maintaining this temperature over a time period of between 1 and 40 hours, and then cooling the mixture.
    Type: Grant
    Filed: August 3, 1983
    Date of Patent: January 1, 1985
    Assignee: Bergwerksverband GmbH
    Inventors: Josef Degel, Klaus-Dirk Henning, Jurgen Klein, Klaus Wybrands