Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6227888 | Interchangeable plug device | — | 2001-05-08 |
| 6230029 | Modular wireless headset system | Genrik Yegiazaryan, Sung Kee Baek, David S. Hishinuma, Robert Jetter | 2001-05-08 |
| 6078825 | Modular wireless headset system for hands free talking | Genrik Yegiazaryan, Sung Kee Baek, David S. Hishinuma, Robert Jetter | 2000-06-20 |
| 6027828 | Modular stackable battery pack and accessories | — | 2000-02-22 |
| 5973948 | Universal linear power supply | Sung Kee Baek | 1999-10-26 |
| 5847541 | Universally interchangeable and modular power supply with integrated battery charger | — | 1998-12-08 |
| 5684689 | Interchangeable plug power supply with automatically adjusting input voltage receiving mechanism | — | 1997-11-04 |
| D382540 | Interchangeable plug device | — | 1997-08-19 |
| 5659236 | Battery charger with collapsible battery positioning and support apparatus | — | 1997-08-19 |
| D381314 | Interchangeable plug device | — | 1997-07-22 |
| 5648712 | Universally interchangeable and modular power supply with integrated battery charger | — | 1997-07-15 |
| 5634806 | Interchangeable collapsible plug device for battery charger | — | 1997-06-03 |
| 5628641 | Collapsible plug device for battery charger | — | 1997-05-13 |
| 5626496 | Cigarette lighter adapter with flexible diameter | — | 1997-05-06 |
| D379003 | Interchangeable plug device | — | 1997-04-29 |
| 5611701 | Collapsible prong plug device for battery charger | — | 1997-03-18 |
| D378291 | Interchangeable plug device | — | 1997-03-04 |
| D378290 | Interchangeable plug device | — | 1997-03-04 |
| 5568365 | High output, compact power supply | Sung Kee Baek | 1996-10-22 |
| 5507667 | Power cord securing and storage device | Sung-Keun Kim | 1996-04-16 |