Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833877 | Process for the reduction of pollutant emissions from power stations with combined gas/steam turbine processes with preceding coal gasification | Erwin Ahland, Franz Verfuss, Joachim W. Lehmann | 1989-05-30 |