Patents by Inventor H. Bernd Engler

H. Bernd Engler 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 the selective reduction of nitrogen oxides with ammonia
    Patent number: 4916107
    Abstract: A catalyst for the selective reduction with ammonia of nitrogen oxides from an intimate mixture of at least 3 metals in the form of their oxides, namely, titanium, tungsten and at least one of the metals vanadium, iron, niobium, molybdenum, with an atomic ratio of Ti to the other metals of 1:0.001 to 1, wherein there is used as oxide of the titanium a product obtained by flame hydrolysis, which product is impregnated with solutions of the salts of the other metals and is dried and calcined at a high temperature.
    Type: Grant
    Filed: November 17, 1988
    Date of Patent: April 10, 1990
    Assignee: Degussa Aktiengesellschaft
    Inventors: Reinhold Brand, H. Bernd Engler, Wolfgang Honnen, Peter Kleine-Moellhoff, Edgar Koberstein