Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4703032 | Active coke produced from pit coal and production process thereof | Erich Sundermann, Hans Reye | 1987-10-27 |
| 4407701 | Apparatus for treating gases produced from coal | Dietrich Wagener, Horst Fach, Peter Sauder | 1983-10-04 |
| 4303495 | Recovery of liquid and gaseous hydrocarbons from raw materials containing hydrocarbons such as oil shale and coal | Alfred Behrmann, Herbert Gottschlich, Christian Koch | 1981-12-01 |
| 4254338 | Determination of temperature distributions on awkwardly located or low-access surfaces | Hans-Josef Giertz, Joachim Hoppe, Werner Eisenhut, Bhubaneswar Sarangi, Gunter Serwatzky | 1981-03-03 |