Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6244417 | Material handling unit with multidirectional helical roller assemblies | Michael L. Timmer, Juan Gou | 2001-06-12 |
| 6065665 | Ball deck | Chunguang Yuan, Michael A. Leon | 2000-05-23 |
| 5890582 | Ball deck | Chunguang Yuan, Michael A. Leon | 1999-04-06 |