Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5302292 | Method for treating ground water contamination | Mitchel Helfeld | 1994-04-12 |
| 5034155 | Cooling water treatment composition | Mitchel Helfeld | 1991-07-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5302292 | Method for treating ground water contamination | Mitchel Helfeld | 1994-04-12 |
| 5034155 | Cooling water treatment composition | Mitchel Helfeld | 1991-07-23 |