Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6605219 | Wastewater treatment apparatus and method | — | 2003-08-12 |
| 6253564 | Heat transfer system | Merrill A. Yarbrough | 2001-07-03 |
| 5901563 | Heat exchanger for heat transfer system | Merrill A. Yarbrough | 1999-05-11 |
| 5802864 | Heat transfer system | Merrill A. Yarbrough | 1998-09-08 |