Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7143759 | Slotter provided with simultaneously two-way rotary saw blades | — | 2006-12-05 |
| 7029385 | Two-way rotary multi-function polisher | — | 2006-04-18 |
| 6332735 | Bicycle headset assembly with a circular cover having tapered tabs | — | 2001-12-25 |
| 5287052 | Size adjustable battery charger | — | 1994-02-15 |
| 5157318 | Structure of battery charger for different size and specification batteries | — | 1992-10-20 |
| 5071271 | Ink ribbon inking device | Rong J. Chang | 1991-12-10 |