Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4273617 | Method and apparatus for quenching heated bulk material | Franz Goedde, Wolfgang Schrank | 1981-06-16 |
| 4204912 | Method and apparatus for purifying gases leaking from coke ovens | Wilfried Hurter | 1980-05-27 |
| 4186057 | Gas extracting and purifying equipment | Johann G. Riecker | 1980-01-29 |