Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5685267 | Spherical joint connecting rod | Craig Allen Barnes, Richard Belush, Richard Duane Conrow, Siegfried Mielke | 1997-11-11 |
| 5669285 | Spherical joint connecting rod holder rings | Richard Duane Conrow, Siegfried Mielke | 1997-09-23 |