Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9819208 | Battery management circuit having cell connections for batteries and a plurality of corresponding windings and diodes | — | 2017-11-14 |
| 9570547 | Monolithic DMOS transistor in junction isolated process | — | 2017-02-14 |
| 9438123 | Push-pull LED driver circuit | — | 2016-09-06 |
| 8324684 | Monolithic high-current and low-current transistors sharing high voltage drain | — | 2012-12-04 |
| 6992362 | Semiconductor with high-voltage components and low-voltage components on a shared die | — | 2006-01-31 |
| 6573550 | Semiconductor with high-voltage components and low-voltage components on a shared die | — | 2003-06-03 |
| 6275405 | Motor drive circuit | — | 2001-08-14 |
| 6236100 | Semiconductor with high-voltage components and low-voltage components on a shared die | — | 2001-05-22 |
| 6222744 | Isolated power supply circuit for a floating gate driver | — | 2001-04-24 |
| 6215334 | Analog signal processing circuit with noise immunity and reduced delay | — | 2001-04-10 |
| 6069472 | Converter/inverter using a high efficiency switching circuit | — | 2000-05-30 |
| 5969547 | Analog signal processing circuit with noise immunity and reduced delay | — | 1999-10-19 |
| 5847593 | Voltage discharge circuit for a photovoltaic power source | — | 1998-12-08 |
| 5155568 | High-voltage semiconductor device | — | 1992-10-13 |
| 5031017 | Composite optical shielding | Michael D. Walters, Kevin Venor | 1991-07-09 |
| 4980568 | Optical isolator having high voltage isolation and high light flux light guide | Stephen P. Merrick | 1990-12-25 |
| 4939375 | Solid state relay with shield means | Michael D. Walters, John F. Petrilla | 1990-07-03 |
| 4902901 | High-power solid state relay employing photosensitive current augmenting means for faster turn-on time | — | 1990-02-20 |
| 4893063 | Apparatus for improving the efficiency of a lighting element | — | 1990-01-09 |
| 4864126 | Solid state relay with optically controlled shunt and series enhancement circuit | Michael D. Walters, John F. Petrilla | 1989-09-05 |
| 4453134 | High voltage operational amplifier | — | 1984-06-05 |
| 4395645 | MOSFET Logic inverter buffer circuit for integrated circuits | — | 1983-07-26 |
| 4333133 | Power source with an electronic impedance changer | — | 1982-06-01 |
| 4241239 | Fluxbucking line transformer with electronic equivalent line terminating impedance | — | 1980-12-23 |