Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5647226 | Phase change apparatus for animal parts, human body parts, body fluids and culture | Lawrence R. Grzyll | 1997-07-15 |
| 5638689 | Portable refrigerant recovery system | Fulin Gui, Steven D. Gann | 1997-06-17 |
| 5617731 | Refrigerant recovery/recycling system | — | 1997-04-08 |
| 5603224 | Portable refrigerant recovery system | Fulin Gui, Steven D. Gann | 1997-02-18 |