Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7677788 | Curved blade mixing device | Hans-Jurgen Weiss, Burghard Neumann, Jorg Schmalfeld | 2010-03-16 |
| 7507330 | Method for high-temperature short-time distillation of residual oil | Hans-Jurgen Weiss, Helmut Heurich | 2009-03-24 |
| 6841064 | Process for the gentle flash distillation of residual oils | Hans-Jurgen Weiss, Ingo Dreher | 2005-01-11 |
| 6652739 | Process for deasphalting residua by reactive recycle of high boiling material | Mitchell Jacobson, Willibald Serrand, Norman H. Sweed, Hans-Jurgen Weiss, Ingo Dreher +1 more | 2003-11-25 |
| 6469203 | Method for depolymerizing polymethylmethacrylate | Hans-Jurgen Weiss, Jorg Schmalfeld, Tobias Groschang, Udo Gropp, Werner Fuss +2 more | 2002-10-22 |
| 6413415 | Method for high-temperature short-time distillation of residual oils | Hans-Jurgen Weiss, Jorg Schmalfeld, Ingo Dreher, Willibald Serrano | 2002-07-02 |
| 5584970 | Process of producing wood charcoal in a moving bed | Jorg Schmalfeld, Hans J. Eichwald | 1996-12-17 |
| 4773919 | Fixed bed gasification process | Dieter Sauter | 1988-09-27 |