Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5438316 | Fence alarm system with swiveling posts | Michael P. Coppo | 1995-08-01 |
| 5392027 | Full bridge strain gage deflection sensor | Frank A. Brunot, Michael P. Coppo | 1995-02-21 |
| 4476460 | Self-test circuit for multi-point level indicator | — | 1984-10-09 |
| 4410886 | Wall build-up detector for a multi-point level indicator | — | 1983-10-18 |
| 4396911 | Multi-point level indicator system | Tom L. Erb | 1983-08-02 |
| 4365402 | Method for counting turns when making threaded joints | Russell L. McCombs | 1982-12-28 |
| 4210017 | Method and apparatus for generating an actual torque signal during the make-up of threaded joints | — | 1980-07-01 |
| 4208775 | Method and apparatus for making threaded joints | Russell L. McCombs | 1980-06-24 |
| 4208919 | Threaded joint making apparatus having a d.c. power supply | — | 1980-06-24 |