Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6186915 | Steplessly variable V-pulley looping transmission | — | 2001-02-13 |
| D412509 | Drilling machine | Ruey-Zon Chen | 1999-08-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6186915 | Steplessly variable V-pulley looping transmission | — | 2001-02-13 |
| D412509 | Drilling machine | Ruey-Zon Chen | 1999-08-03 |