Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6432165 | Method for injecting gases into a metallurgical tank | Rainer Dittrich, Horst-Dieter Scholer, Andreas Ploch | 2002-08-13 |
| 6201212 | Process and apparatus for the continuous welding of guided and abutted strips or plates by means of a laser beam | Martin Koch, Steffen Thiem | 2001-03-13 |
| 5204505 | Process and apparatus for the continuous welding of strips guided in abutment by a laser beam | Wilfried Prange, Joseph Sturm, Hans Schachheim, Heinrich Schmitz | 1993-04-20 |
| 4852523 | Atmospheric gas boiler | — | 1989-08-01 |