Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4741809 | Coke oven doors for horizontal-chamber coke ovens | Wolfgang Becker | 1988-05-03 |
| 4740271 | Coke oven doors for horizontal-chamber coke ovens | Wolfgang Becker | 1988-04-26 |
| 4683032 | Coke oven doors for horizontal chamber coke ovens | Wolfgang Becker | 1987-07-28 |
| 4254974 | Bolting device, particularly for coke-oven doors | Rudi Rolke | 1981-03-10 |