Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5836349 | Bidirectional flow control device | John M. Palmer | 1998-11-17 |
| 5727395 | Defrost control for heat pump | Zhichao Guo, Robert P. Dolan, Kevin F. Dudley, Thomas R. Phillips | 1998-03-17 |