Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5022196 | Expandable honing tool | John J. Schimweg, Rickey K. Wilken | 1991-06-11 |
| 4886157 | Workpiece delivery magazine | Frank E. Vanderwal, Jr., Richard Jackson | 1989-12-12 |
| 4827674 | Workpiece gripper and support | Frank E. Vanderwal, Jr. | 1989-05-09 |
| 4621455 | Combination horizontal/vertical honing machine | Wayne W. Althen, Rickey S. Riehl | 1986-11-11 |
| 4555875 | Means for attaching a replaceable stone and/or guide assembly to a master holder | Duane W. Woltjen | 1985-12-03 |
| 4524549 | Honing head construction | Morton B. Estes | 1985-06-25 |
| 4505076 | Means for drivingly attaching a replaceable stone assembly to a master stone holder | — | 1985-03-19 |
| 4486983 | Guides for honing heads | Duane W. Woltjen | 1984-12-11 |