Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4891194 | Method for scrubbing flue gases from a firing unit | Ryszard Kubisa | 1990-01-02 |
| 4469033 | Method of minimizing the emission of contaminants from combustion plants | Sigfrid Michelfelder | 1984-09-04 |
| 4461224 | Method of minimizing the emission of contaminants from flame combustion | Sigfrid Michelfelder | 1984-07-24 |