Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8038800 | Method and device for cleaning the door of a coke oven | Frank Rossa, Hans-Josef Giertz, Friedrich Huhn, Jürgen George, Ralf Hoven +3 more | 2011-10-18 |
| 5421963 | Coke-feeding device with housing for a dry cooling installation for coke | Wilhelm Stewen, Norbert Dunker, Naoto Yasukouchi, Kazushi Kishigami | 1995-06-06 |
| 4863485 | Fuel briquettes | Hans G. Scafer, Wolfgang Cieslik, Axel Vogts, Gunter Poppel, Horst Schurmann | 1989-09-05 |