Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5570590 | Refrigerant reclaiming method and system | Eigil Hansen, Thomas L. Crandall | 1996-11-05 |
| 5533358 | Refrigerant recovering system | Thomas L. Crandall, Eigil Hansen | 1996-07-09 |
| 5002018 | Umbrella seal for an automobile valve stem | — | 1991-03-26 |