Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6374716 | High speed harvester cutting chain | Johann Weber, Michael J. Patterson | 2002-04-23 |
| 5896670 | Chain tensioner for chain saw | Duane M. Gibson, Kent L. Huntington, Johann Weber | 1999-04-27 |
| 5649367 | Chain saw guide bar with identifying indicia | Robert J. Penberthy | 1997-07-22 |
| 4898057 | Low vibration center drive cutter chain | — | 1990-02-06 |
| 4885843 | Laminated guide bar for chain saws having foam core | Royal E. Kelsay, III | 1989-12-12 |