Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4547972 | Tilt sensor and monitoring system | Jeffrey C. Heidel, Lynn R. Lane, Harold L. Swartz | 1985-10-22 |
| 4503622 | Precision inclinometer with digital numerical readout | Harold L. Swartz, Lynn R. Lane | 1985-03-12 |