Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9315396 | Water conservation methods combining osmotic membrane processed water for subsequent efficient use in cooling tower applications | Dan A. Duke | 2016-04-19 |
| 8057738 | Cooling water scale inhibition method | Dan A. Duke | 2011-11-15 |
| 7955553 | Cooling water corrosion inhibition method | Dan A. Duke | 2011-06-07 |
| 7708939 | Cooling water corrosion inhibition method | Dan A. Duke | 2010-05-04 |
| 7517493 | Cooling water corrosion inhibition method | Dan A. Duke | 2009-04-14 |
| 7122148 | Cooling water scale and corrosion inhibition | Dan A. Duke, John P. Wetherell | 2006-10-17 |
| 6998092 | Cooling water scale and corrosion inhibition | Dan A. Duke | 2006-02-14 |
| 6949193 | Cooling water scale and corrosion inhibition | Dan A. Duke | 2005-09-27 |
| 6929749 | Cooling water scale and corrosion inhibition | Dan A. Duke, John P. Wetherell | 2005-08-16 |