Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4671456 | Air modulated in duct humidification and evaporative cooling system | Gordon S. Groff | 1987-06-09 |
| 4572428 | In duct atomizing humidification and evaporative cooling system | Gordon S. Groff | 1986-02-25 |
| 4384873 | Central steam humidifier | — | 1983-05-24 |