Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5377662 | Furnace door attachment | Rex R. Mills, Timothy J. Waterman, Allen L. Sherven | 1995-01-03 |
| 5322051 | Hinged blower access door with blower switch activation | Allen L. Sherven, Scott A. Beck, Robert C. Swilik, Jr. | 1994-06-21 |