Patents by Inventor Guenter Stadtmueller

Guenter Stadtmueller 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 determining the thickening effect of silicon dioxide
    Patent number: 5736407
    Abstract: The thickening effect of flame hydrolysis produced silicon dioxide is determined by making a dispersion of the flame hydrolysis produced silicon dioxide in a liquid such as water or ethanol and measuring the turbidity of this dispersion.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: April 7, 1998
    Assignee: Degussa Aktiengesellschaft
    Inventors: Thomas Henning, Guenther Michael, Guenter Stadtmueller
  • Method for increasing the thickening action of pyrogenically produced silicon dioxide
    Patent number: 4721530
    Abstract: The utilization of ethoxylated polyethyleneamines for addition to aqueous dispersions of pyrogenically prepared silicon dioxide in order to obtain an increase of the thickening action thereof.
    Type: Grant
    Filed: October 30, 1986
    Date of Patent: January 26, 1988
    Assignee: Degussa Aktiengesellschaft
    Inventors: Manfred Ettlinger, Johann Mathias, Guenter Stadtmueller