Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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, Hansjorg Herden, Gurudas Samant, Peter Ludwig | 2001-05-29 |
| 5827484 | Process and apparatus for separating polycyclic and polyhalogenated hydrocarbons from exhaust gas of a sintering process | Hansjoerg Herden, Stefan Federhen, Hubert Roth | 1998-10-27 |
| 5659110 | Process of purifying combustion exhaust gases | Hansjoerg Herden, Guenter Boening | 1997-08-19 |
| 5620673 | Process and apparatus for separating polycyclic and polyhalogenated hydrocarbons from exhaust gas of a sintering process | Hansjoerg Herden, Stefan Federhen, Hubert Roth | 1997-04-15 |
| 5439508 | Process of separating halogenated dioxins and furans from exhaust gases from combustion plants | Gunter Boning | 1995-08-08 |
| 4935113 | Process of purifying the aqueous effluent from paint, lacquer and varnish spray booths | Gunter Boning | 1990-06-19 |