Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11193452 | Carburetor drain valve | — | 2021-12-07 |
| 10462564 | Operating a headset that includes microphone line and pushbutton keys | Ball Fan, Wenpang David Wang | 2019-10-29 |
| 10312912 | Gate control for a tristate output buffer | — | 2019-06-04 |
| 10110231 | Level shifter for a wide low-voltage supply range | — | 2018-10-23 |
| 10027325 | Circuit having a parallel voltage threshold architecture to support a wide voltage supply range | — | 2018-07-17 |
| 9479882 | Initial command to switch transistors disconnecting keys from microphone line | Ball Fan, Wenpang David Wang | 2016-10-25 |
| 9136796 | Negative audio signal voltage protection circuit and method for audio ground circuits | David H. Elwart, II, Vikas Suma Vinay, Baher Haroun | 2015-09-15 |
| 8009395 | Methods and apparatus for over-voltage protection of device inputs | John Edward Esquivel, James C. Spurlin | 2011-08-30 |
| 7030659 | Signal switch with reduced on resistance and undershoot protection | — | 2006-04-18 |
| 6847235 | Bus driver | — | 2005-01-25 |
| 6414533 | Over-voltage tolerant, active pull-up clamp circuit for a CMOS crossbar switch | — | 2002-07-02 |
| 6268759 | Low-power 5-volt input/output tolerant circuit with power-down control for a low voltage CMOS crossbar switch | — | 2001-07-31 |
| 6100719 | Low-voltage bus switch maintaining isolation under power-down conditions | Steven E. Marum | 2000-08-08 |