Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6409157 | Air treatment unit | Bertil Lundin, Geoffrey Bowers | 2002-06-25 |
| 6085834 | Air handling system | Richard Pautz | 2000-07-11 |
| 5248454 | Algae resistant edge coating | — | 1993-09-28 |
| 5143658 | Alternating sheet evaporative cooling pad | — | 1992-09-01 |
| 5112538 | Apparatus for concentrating bleed-off water for evaporating coolers | — | 1992-05-12 |
| 5055239 | Liquid and gas contact apparatus | — | 1991-10-08 |