Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5425317 | Process for gasifying waste materials which contain combustible constituents | Georg Schaub, Rainer Reimert, Hans Beisswenger | 1995-06-20 |
| 5336317 | Process for making cement using low-grade fuels | Hans Beisswenger, Jochim Eschenburg | 1994-08-09 |
| 5150729 | Control spear for use in a passage for conducting dust-containing hot gases | Wolfgang Frank, Norbert Holle | 1992-09-29 |
| 5014744 | Shut-off device | Klaus Zapke | 1991-05-14 |