Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4614567 | Method and apparatus for selective after-quenching of coke on a coke bench | Dieter Stahlherm, Wilhelm Stewen, Helmut Lukaszewicz | 1986-09-30 |
| 4574034 | Method for monitoring the reversal system of coke oven batteries | Otto Lemke, Dieter Stalherm | 1986-03-04 |