Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821427 | Methods for reducing the amount of contaminants in water | John MacPherson, Jason Jacob Ziemer | 2004-11-23 |
| 6749748 | Methods for reducing the amount of contaminants in water | John MacPherson, Jason Jacob Ziemer | 2004-06-15 |