Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6752297 | Waste reducing dispensing container | — | 2004-06-22 |
| 5888385 | Vehicle coolant recycling | Michael W. Johnson, William S. Dea, Thomas D. Chandler | 1999-03-30 |
| 5549832 | Vehicle coolant recycling | Michael W. Johnson, William S. Dea, Thomas D. Chandler | 1996-08-27 |