Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4555267 | Process for making fuel from solid metallic iron-bearing materials | — | 1985-11-26 |
| 4473399 | Method of supplying coal gas to a smelting works | — | 1984-09-25 |
| 4375982 | Method for purifying a dust-containing hot gas, more particularly coal gas produced from coal fed into a steel or iron bath reactor | — | 1983-03-08 |
| 4315772 | Process for steel production and converter for carrying out the process | Paul-Gerhard Mantey | 1982-02-16 |