Patents by Inventor Bernd Hupe

Bernd Hupe 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 adjusting the structural and/or surface character of oxides
    Patent number: 4894357
    Abstract: A process for adjusting at least one of the structural and surface characteristics of an oxide material, e.g. SiO.sub.2 or Al.sub.2 O.sub.3, by dehydration of a water-containing oxide gel under supercritical conditions by extracting the water with an extraction agent such as CO.sub.2 at a pressure above the critical pressure of the extraction agent.
    Type: Grant
    Filed: October 31, 1985
    Date of Patent: January 16, 1990
    Assignee: Kali-Chemie Aktiengesellschaft
    Inventors: Bernd Hupe, Robert Walter