Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8785877 | Method for monitoring fouling in a cooling tower | Charles B. Winfield, Lance Freeman | 2014-07-22 |
| 8362440 | Method for monitoring fouling in a cooling tower | Charles B. Winfield, Lance Freeman | 2013-01-29 |
| 8129692 | Method for monitoring fouling in a cooling tower | Charles B. Winfield, Lance Freeman | 2012-03-06 |