Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5555704 | Sterilization system | James E. Caufield, Ralph H. Torborg | 1996-09-17 |
| 5307990 | Adaptive forced warm air furnace using analog temperature and pressure sensors | Ralph H. Torborg | 1994-05-03 |
| 5248083 | Adaptive furnace control using analog temperature sensing | Ralph H. Torborg | 1993-09-28 |
| 5089689 | Flame safeguard control anti-swap feature | Kenneth B. Kidder | 1992-02-18 |
| 4923117 | Microcomputer-controlled system with redundant checking of sensor outputs | James I. Bartels, Robert A. Black, Kenneth B. Kidder, William R. Landis, Paul B. Patton | 1990-05-08 |
| 4835670 | Microcomputer fuel burner control having safety interlock means | Kenneth B. Kidder, William R. Landis | 1989-05-30 |