Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6510904 | Protected tool bushing for an impact hammer | — | 2003-01-28 |
| 6047475 | Mounting for a construction shear | John A. Higgins | 2000-04-11 |
| 5410905 | Meter for comparing impact hammers | Ron R. Karani | 1995-05-02 |