Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6449142 | Keyboard with ports | — | 2002-09-10 |
| 5937023 | Method and circuit for detecting small variations in capacity via delay accumulation | — | 1999-08-10 |
| 5718327 | Key switch for a keyboard | — | 1998-02-17 |
| 5488206 | Joystick switch assembly | — | 1996-01-30 |
| 5473126 | Joystick switch assembly | — | 1995-12-05 |
| 5424935 | Power converter with a piezoelectric ceramic transformer | — | 1995-06-13 |
| 5263783 | Key switch | — | 1993-11-23 |