Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8601783 | Internal ring sealed chain | Christopher Pfahl, Dick Virgo | 2013-12-10 |
| 8474097 | Roller assembly | Stefan B. Andren | 2013-07-02 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8601783 | Internal ring sealed chain | Christopher Pfahl, Dick Virgo | 2013-12-10 |
| 8474097 | Roller assembly | Stefan B. Andren | 2013-07-02 |