Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5230821 | Cleaning composition | John Charles Larson | 1993-07-27 |
| 4443634 | Removal of impurities | William C. Ziegenhain | 1984-04-17 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5230821 | Cleaning composition | John Charles Larson | 1993-07-27 |
| 4443634 | Removal of impurities | William C. Ziegenhain | 1984-04-17 |