Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6446580 | Fossil fuel-fired continuous-flow steam generator | Rudolf Kral, Eberhard Wittchow | 2002-09-10 |
| 6446584 | Fossil-fuel-fired steam generator | Rudolf Kral | 2002-09-10 |
| 6189491 | Steam generator | Eberhard Wittchow, Rudolf Kral | 2001-02-20 |
| 6044804 | Method and device for monitoring a feedwater supply to a steam generator | Eberhard Wittchow | 2000-04-04 |
| 5983639 | Method and system for starting up a continuous flow steam generator | Rudolf Kral | 1999-11-16 |
| 5979370 | Continuous-flow steam generator | — | 1999-11-09 |
| 5839396 | Method and apparatus for starting up a continuous-flow steam generator | Eberhard Wittchow | 1998-11-24 |
| 5623019 | Compatibilized thermoplastic molding composition | Jeffrey S. Wiggins, Harald Pielartzik, Robert J. Kumpf, Clifford J. Lau | 1997-04-22 |
| 5529021 | Forced once-through steam generator | Axel Butterlin, Hermann Dorr | 1996-06-25 |
| 5395888 | Thermoplastically processible poly-vinylarene/polyurethane block copolymers | Kurt P. Meurer, Peter Haas, Josef Witte | 1995-03-07 |
| 5286765 | Process for the preparation of foundry cores and molds | Hans-Dieter Jakob | 1994-02-15 |
| 5286831 | At least substantially pore-free polyurethane molding compounds | Bernhard Hess, Klaus Prater, Heinrich Heine, Hans-Dieter Jakob | 1994-02-15 |
| 5266662 | Thermosetting reaction mixtures, process for their production and the use thereof for production of moldings and molding material | Hans-Dieter Jakob, Hanns P. Muller, Lutz Schrader | 1993-11-30 |
| 5266405 | Thermosetting compositions for the production of liquid-crystalline epoxide networks, a process for their preparation and their use | Stephan Kirchmeyer, Hanns P. Muller, Alexander Karbach | 1993-11-30 |
| 5256726 | Reactive systems and a process for the preparation of polyurethane plastics | Hanns P. Muller, Renate Bulan | 1993-10-26 |
| 5242977 | Poly-.alpha.-olefin/polyurethane block copolymers, processes for their production and their use | Kurt P. Meurer, Peter Haas, Josef Witte | 1993-09-07 |
| 5206287 | Reactive systems and a process for the preparation of modified duroplasts | Hanns P. Muller, Christian Lindner, Horst Gruttmann, Hans Jacob | 1993-04-27 |
| 5159897 | Continuous-flow steam generator | Volker Kefer, Eberhard Wittchow | 1992-11-03 |
| 5124382 | Blends of polyarylene sulfides, epoxides, anhydrides, glass fibers and optionally other fillers | Burkhard Kohler, Wolfgang Wehnert, Walter Uerdingen | 1992-06-23 |
| 5084544 | Cold setting reaction resin mixture and use thereof | Hanns P. Muller, Artur Botta | 1992-01-28 |
| 5056468 | Steam generator | Eberhard Wittchow, Wolfgang Vollmer | 1991-10-15 |
| 5041494 | Aqueous solutions or dispersions of polyurethanes, a process for their preparation and their use in coating compositions | Hanns P. Muller | 1991-08-20 |
| 4940755 | Thermoplastic moulding compositions based on polyvinyl chloride and a poly-.alpha.-olefine/polyurethane block copolymer | Lothar Meier, Maria Gartner, Kurt P. Meurer, Christian Lindner | 1990-07-10 |
| 4889908 | Polyethers and their use as mold release agents for plastics | Wilhelm Goyert, Helmut Kipphardt | 1989-12-26 |
| 4820871 | Process for the preparation of N,N-diaryl-ureas | Wolfram Kissener, Helmut Fiege, Karlfried Wedemeyer | 1989-04-11 |