Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6491771 | Method of producing round billets | Harald Wehage, Uwe Quitmann, Walter Weischedel | 2002-12-10 |
| 6435218 | Pipe with crack stopper feature, and process of protecting a pipe against propagation of cracks | Hans-Georg Hillenbrand, Gerd Junker, Gerhard Knauf, Johannes Arndt | 2002-08-20 |
| 6153028 | Process and device for producing thin metal bars | Fritz-Peter Pleschiutschnigg, Markus Ring, Wolfgang Bleck, Tarek El Gammal, Paul Splinter +2 more | 2000-11-28 |
| 6095232 | Process and device for producing metallic composite materials | Tarek El Gammal, Gamal Mohamed Megahed, Fritz-Peter Pleschuitschnigg | 2000-08-01 |
| 5992501 | Floor lead-through element for an inversion casting vessel | Tarek El Gammal, Peter Lorenz Hamacher, Michael Vonderbank, Fritz-Peter Pleschiutschnigg | 1999-11-30 |
| 5881441 | Device for making semi-finished products | Fritz-Peter Pleschiutschnigg, Lothar Parschat, Dieter Stalleicken, Tarek El Gammal, Michael Vonderbank +3 more | 1999-03-16 |
| 5855238 | Process and device for the continuous production of sheet metal strips | Fritz-Peter Pleschiutschnigg | 1999-01-05 |
| 5850869 | Inversion casting device with crystallizer | Fritz-Peter Pleschiutschnigg, Dieter Stalleicken, Lothar Parschat, Ulrich Menne, Tarek El Gammal +2 more | 1998-12-22 |
| 5832984 | Method of producing long steel products | Fritz-Peter Pleschiutschnigg, Lothar Parschat, Dieter Stalleicken, Winfried Binder, Klaus Bruckner +1 more | 1998-11-10 |
| 5832985 | Process and device for producing a steel strip with the properties of a cold-rolled product | Fritz-Peter Pleschiutschnigg, Wolfgang Bleck, Paul Splinter | 1998-11-10 |
| 5722151 | Process for making semi-finished products | Fritz-Peter Pleschiutschnigg, Lothar Parschat, Dieter Stalleicken, Tarek El Gammal, Michael Vonderbank +3 more | 1998-03-03 |
| 5573605 | High-temperature steel for boiler making | Walter Bendick, Klaus H. Haarmann | 1996-11-12 |
| 5462615 | Weldable high-strength structural steel with 13% chromium | Rolf Popperling, Hubertus Schlerkmann, Ulrike Zeislmair | 1995-10-31 |
| 5370751 | Hot rolled and air hardened steel for manufacturing structural tubes and method thereof | Ulrich Menne, Ulrich Hoffmann, Bernhard Vogelsang | 1994-12-06 |
| 5256219 | Steel reinforcement tube | Christoph Prasser, Enno Wieting | 1993-10-26 |
| 5232740 | Method of manufacturing plated hollow blocks | Christoph Prasser, Fritz-Peter Pleschiutschnigg, Lothar Parschat | 1993-08-03 |
| 5122198 | Method of improving the resistance of articles of steel to H-induced stress-corrosion cracking | Gerd Heinz, Rolf Popperling, Hubertus Schlerkmann | 1992-06-16 |
| 5030297 | Process for the manufacture of seamless pressure vessels and its named product | Dieter Vespermann, Bernhard Hoffmann, Heinz-Joachim Muller | 1991-07-09 |
| 5019180 | Method of manufacturing of high-strength seamless steel tubes | Christoph Prasser, Gerd Homberg | 1991-05-28 |
| 4900376 | Hardening a cylindrical hollow object preferably made of steel | Wilhelm Nickel, Christoph Prasser | 1990-02-13 |
| 4631095 | Steel that is exposed to hydrogen sulfide | Hans-Georg Hillenbrand, Rolf Popperling | 1986-12-23 |