Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5277254 | Helical rod guide | Paul B. Rullman, H. Milton Hoff | 1994-01-11 |
| 5115863 | Low turbulence rod guide | — | 1992-05-26 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5277254 | Helical rod guide | Paul B. Rullman, H. Milton Hoff | 1994-01-11 |
| 5115863 | Low turbulence rod guide | — | 1992-05-26 |