Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6253833 | Heating sheet bundle for regenerative heat exchangers | Gerd Koster, Winfried Moll | 2001-07-03 |
| 5875833 | Regenerative heat exchanger | — | 1999-03-02 |
| 5814284 | Plant for the reduction of nitrogen oxide in furnace waste gases | — | 1998-09-29 |
| 5678625 | Method and apparatus for a regenerative heat exchanger for the treatment of pollutant-containing waste gases | Werner Niggeschmidt | 1997-10-21 |
| 5577551 | Regenerative heat exchanger and method of operating the same | Gerhard Kritzler | 1996-11-26 |
| 5397548 | Regenerative heat exchanger | Gerhard Kritzler | 1995-03-14 |
| 4789250 | Thrust bearing or axial journal bearing, in particular for slow-running machines | — | 1988-12-06 |