Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5095627 | Method for mounting of semiconductor crystals | Evgneius S. Bujagec, Vaclav V. Prokopovich | 1992-03-17 |
| 4265709 | Method and apparatus for separating gases and solids during the carbonization of coal | Ludwig Offermann, Dieter Stalherm | 1981-05-05 |
| 4263100 | Method and apparatus for reducing fine dust emission while charging predried and preheated coal into coke ovens | Dieter Stalherm | 1981-04-21 |
| 4247366 | Method of operating a coal predrying and heating plant in connection with a coking plant | Johannes Knappstein, Dieter Stalherm | 1981-01-27 |
| 4240877 | Method for preheating coal for coking | Dieter Stahlherm, Gerhard Rutkowski, Hans Becker | 1980-12-23 |
| 4211611 | Coke oven coal charging device | Dieter Stalherm | 1980-07-08 |
| 4197165 | Bunker construction for charging hot, dry coal and cold, wet coal to coke oven charging hoppers | Johannes Knappstein | 1980-04-08 |