Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6321558 | Water source heat pump with hot gas reheat | — | 2001-11-27 |
| 5272882 | Portable recycle/recovery/charging system with reconfigurable components | Randall L. Degier, Richard L. Groth, Stephen T. Kerr, Ralph C. Mullally, Robert Roth | 1993-12-28 |