Issued Patents All Time
Showing 551–555 of 555 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4562894 | Coupling multi driving system | — | 1986-01-07 |
| 4535659 | Torque limiting wrench with an audio alarm | — | 1985-08-20 |
| 4505301 | Liquid mixing valve | — | 1985-03-19 |
| 4455594 | Extension, folding or detachable lamp shade | — | 1984-06-19 |
| 4321593 | Television set with supervisory functions of alarming burglary and safe watching distance | Chi-Chou Ho | 1982-03-23 |