Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5931663 | Purge system for regenerative thermal oxidizer | David A. Lewandowski, Peter J. Waldern | 1999-08-03 |
| 5707596 | Method to minimize chemically bound nox in a combustion process | David A. Lewandowski, Peter J. Waldern | 1998-01-13 |
| 5667374 | Premix single stage low NOx burner | Peter J. Waldern | 1997-09-16 |
| 5184951 | Regenerative thermal oxidizer | Peter J. Waldern | 1993-02-09 |
| 5161968 | Regenerative thermal oxidizer | Peter J. Waldern | 1992-11-10 |
| 4445843 | Low NO.sub.x burners | — | 1984-05-01 |