Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9967519 | Video conference control method and apparatus using the same | — | 2018-05-08 |
| 7741905 | Automatic gain control circuit | — | 2010-06-22 |
| 7639465 | Inrush current restraining circuit and audio device using the same | Shih-Kai Chou | 2009-12-29 |
| 7445129 | Holding device for holding tubular items | — | 2008-11-04 |
| 6976716 | Portable door lock | — | 2005-12-20 |
| D384379 | Abdominal exerciser | — | 1997-09-30 |
| 5190327 | Tubular door lock | — | 1993-03-02 |
| 5157952 | Tubular door lock | — | 1992-10-27 |
| 5118152 | Inner bearing plate unit of easy assembling for a lock | — | 1992-06-02 |
| 5039146 | Tubular latch housing | — | 1991-08-13 |
| D299670 | Exercise bicycle | Juff S. Pai | 1989-01-31 |
| 4709565 | United opening device for a double-locked door | — | 1987-12-01 |
| 4705493 | Transmission mechanism for gymnastic bicycle | — | 1987-11-10 |