Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7992641 | Method and apparatus for on-site nitrate production for a water processing system | Donald O. Hitzman | 2011-08-09 |
| 7934544 | Method and apparatus for on-site nitrate production for a water processing system | Donald O. Hitzman | 2011-05-03 |
| 7828061 | Method and apparatus for on-site nitrate production for a water processing system | Donald O. Hitzman | 2010-11-09 |
| 7604741 | Method for on-site production of nitrate ions | Donald O. Hitzman, Bruce Alan Iiams | 2009-10-20 |
| 7514058 | Apparatus for on-site production of nitrate ions | Donald O. Hitzman, Bruce Alan Iiams | 2009-04-07 |