Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4790743 | Method of reducing the nox-emissions during combustion of nitrogen-containing fuels | Klaus-Dieter Rennert, Gerhard Buttner | 1988-12-13 |
| 4642225 | Method of binding sulfur compounds by adding additives | — | 1987-02-10 |
| 4551090 | Burner | Gerhard Buttner, Sigfrid Michelfelder | 1985-11-05 |
| 4501206 | Method of igniting a pulverized-coal pilot-burner flame | — | 1985-02-26 |
| 4466363 | Method of igniting a pulverized coal annular burner flame | Sigfrid Michelfelder | 1984-08-21 |
| 4436038 | Method of preparing pulverized fuel withdrawn from a primary fuel flow for a pulverized fuel pilot light by means of a sifter device or a supplemental pulverizing plant | Klaus-Dieter Rennert | 1984-03-13 |
| 4426938 | Method of preparing ignition fuel pursuant to flow dynamics from a primary fuel flow for a pulverized fuel pilot light | Klaus-Dieter Rennert | 1984-01-24 |
| 4333405 | Burner for combustion of powdered fuels | Sigfrid Michelfelder | 1982-06-08 |