Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6764857 | Systems and methods for measuring nitrate levels | George Allen, Petros Koutrakis | 2004-07-20 |
| 6503758 | Systems and methods for measuring nitrate levels | George Allen, Petros Koutrakis | 2003-01-07 |