Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6749822 | Process for treatment of gases from a sintering plant | Karl-Rudolf Hegemann | 2004-06-15 |
| 4576803 | Method of producing calcium sulfate dihydrate in connection with the desulfurization of flue gases | Karl-Rudolf Hegemann, Jurgen Laimkuhler | 1986-03-18 |
| 4503020 | Method of producing calcium sulfate semihydrate in conjunction with the desulfurization of flue gases | Karl-Rudolf Hegemann | 1985-03-05 |
| 4427183 | Gas control system for steel-making converters | Karl-Rudolf Hegemann | 1984-01-24 |
| 4415142 | Apparatus for handling converter gas | Karl-Rudolf Hegemann, Kurt Hinsken | 1983-11-15 |
| 4375439 | Annular gap scrubber | Karl-Rudolf Hegemann, Albert Brinkmann | 1983-03-01 |
| 4316727 | Annular-gap washer including electrode means | Karl-Rudolf Hegemann, Johannes W. Kautz | 1982-02-23 |
| 4234335 | Gas cleaning method and apparatus | Theodor Niess, Karl-Rudolf Hegemann | 1980-11-18 |
| 4218241 | Method of recovering energy from converter exhaust gases | Karl-Rudolf Hegemann | 1980-08-19 |