Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5335512 | Refrigerant recovery device | John P. Hancock | 1994-08-09 |
| 5317903 | Refrigerant charging system controlled by charging pressure change rate | John P. Hancock, Daniel B. White | 1994-06-07 |