Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5649428 | Hybrid air-conditioning system with improved recovery evaporator and subcool condenser coils | Dean Calton | 1997-07-22 |
| 5632954 | Method for killing microorganisms | James A. Coellner | 1997-05-27 |
| 5595238 | Rotatably supported regenerative fluid treatment wheel assemblies | James Heywood | 1997-01-21 |