Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5810051 | Substantially balanced bidirectionally pivoted valve operating apparatus | Jon R. Stevenson | 1998-09-22 |
| 5129158 | Plastic pipe cutter | — | 1992-07-14 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5810051 | Substantially balanced bidirectionally pivoted valve operating apparatus | Jon R. Stevenson | 1998-09-22 |
| 5129158 | Plastic pipe cutter | — | 1992-07-14 |