Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4908195 | Process of purifying exhaust gas | Dieter Wanner | 1990-03-13 |
| 4541849 | Collector electrode assembly for tubular electrostatic precipitator | Rolf Gelhaar, Wolfgang Hartmann | 1985-09-17 |