Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850201 | Precision-controlled water chiller | Philip D. Oswalt, Steven E. Wash | 1989-07-25 |
| 4802338 | Precision-controlled water chiller | Philip D. Oswalt, Steven E. Wash | 1989-02-07 |
| 4769998 | Precision-controlled water chiller | Philip D. Oswalt, Steven E. Wash | 1988-09-13 |