Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4741808 | Coke oven door | Wilhelm Holz, Friedhelm Haaf, Mutien-Marie Renverse | 1988-05-03 |
| 4614567 | Method and apparatus for selective after-quenching of coke on a coke bench | Dieter Stahlherm, Reimer Haack, Wilhelm Stewen | 1986-09-30 |
| 4410399 | Self-sealing door assembly for a coke oven | Wilhelm Holz | 1983-10-18 |
| 4394217 | Apparatus for servicing coke ovens | Wilhelm Holz, Karl Gregor | 1983-07-19 |