Patents by Inventor Hartmut von Kienle

Hartmut von Kienle 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).

  • Patent number: 4987116
    Abstract: Described is a method for preparing a coarse-pored formed carbon from charcoal dust, charcoal tar and sodium hydroxide solution. These ingredients are mixed, kneaded, shaped and low-tempeature carbonized in as low-oxygen atmosphere as possible at temperatures of 300 to C. The product is further activated with water vapor and/or carbon dioxide at temperature of 700 to C. In the initial mixture, sodium hydroxide is added in amounts of 5.0 to 15.0 % by weight relative to the amount of charcoal dust.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: January 22, 1991
    Inventors: Alfons Karl, Hartmut von Kienle