Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7776298 | Process and device for cleaning combustion flue gases | Barbara Roth, Robert Mergler, Berthold Stegemann, Harald Sauer | 2010-08-17 |
| 6237368 | Process for the regulating or controlling the NOx content of exhaust gases given off during the operating of glass melting furnaces with several burners run alternately | Hans Beisswenger, Klaus Hasselwander, Gernot Mayer-Schwinning, Gurudas Samant, Peter Ludwig | 2001-05-29 |