Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4993873 | Process for treating contaminated earth | — | 1991-02-19 |
| 4793834 | Process for cooling crude coke oven gas | Georg Abendroth | 1988-12-27 |
| 4620967 | Method of recovering sulfur in a Claus process from vapors obtained in coke oven gas cleaning | — | 1986-11-04 |
| 4422857 | Coke gasification method | Heinrich Weber, Horst Dungs | 1983-12-27 |
| 4422858 | Coke gasification method | Heinrich Weber, Horst Dungs | 1983-12-27 |
| 4388172 | Liquefaction of coal | Bernhard Rodewald, Hans-Friedrich Tamm | 1983-06-14 |
| 4368103 | Coal carbonization and/or gasification plant | Klaus Weinzierl | 1983-01-11 |
| 4289647 | Method of producing process gases containing hydrogen and carbon monoxide from ash oil | — | 1981-09-15 |
| 4235625 | Method of producing hydrogen and carbon-oxide-containing process gases for use for reducing ores | — | 1980-11-25 |
| 4230594 | Method of treating spent reducing gas | Heinrich Weber | 1980-10-28 |
| 4220469 | Method for producing reduction gases consisting essentially of carbon monoxide and hydrogen | — | 1980-09-02 |