Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9547289 | Field-configurable user interface circuit and method of installation | — | 2017-01-17 |
| 8004863 | Circuit device and method of providing feedback across an isolation barrier | Walter S. Schopfer | 2011-08-23 |
| 7970125 | Output stacking architecture for an amplifier | Russell J. Apfel | 2011-06-28 |
| 7932577 | Circuit device and method of forming a circuit device having a reduced peak current density | William E. Moore | 2011-04-26 |
| 7855445 | Circuit device including rotated stacked die | D. Matthew Landry | 2010-12-21 |
| 7715165 | System and method of surge protection in a powered device | John Gammel, D. Matthew Landry | 2010-05-11 |
| 7609494 | Voltage protection system and method for a powered device | — | 2009-10-27 |
| 7541790 | Method and apparatus for power savings in a switching regulator | Walter S. Schopfer | 2009-06-02 |
| 7511388 | System and method of detection of power loss in powered ethernet devices | D. Matthew Landry | 2009-03-31 |
| 6356624 | Method and apparatus for detecting and measuring foreign voltages | Russell J. Apfel, Walter S. Schopfer | 2002-03-12 |
| 5737411 | Battery switching in a telephone subscriber line interface circuit | Russell J. Apfel | 1998-04-07 |
| 4513726 | Fuel saving system for a gasoline engine | — | 1985-04-30 |