Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4764318 | Process for the continuous coking of pitches and utilization of the coke obtained thereby | Claus Bertrand | 1988-08-16 |
| 4431484 | Heating system for regenerative coke oven batteries | Heinrich Weber, Dieter Stalherm, Klaus Urbye | 1984-02-14 |