Patents by Inventor Anette Wingen

Anette Wingen 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).

  • Catalyst for oxidizing SO2 to SO3 and utilization of the catalyst in a method for producing sulfuric acid
    Patent number: 6500402
    Abstract: A catalyst for reacting SO2 with molecular oxygen to form SO3 is suited for a continuous operation at temperatures of 700° C. and above, when the same consists of a carrier and an active component connected with the carrier, the active component consists of 10 to 80 wt-% iron, the carrier has a BET surface of 100 to 2000 m2/g and an SiO2 content of at least 90 wt-%, and the weight ratio carrier:active component is 1:1 to 100:1.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: December 31, 2002
    Assignee: Metallgesellschaft Aktiengesellschaft
    Inventors: Egon Winkler, Georg Schmidt, Achim Hollnagel, Dietrich Werner, Nikola Anastasijevic, Franz-Ferdinand Schüth, Anette Wingen