Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9801791 | Medication dispensing cart | Ray Reckelhoff, Markos Paradissis, William C. Colley, III, Michael Mott | 2017-10-31 |
| 6856526 | Power system with phased controlled inrush limiter | Joseph F. Elek, Jeffrey Glenn Felty, Dennis F. Knurek | 2005-02-15 |
| 6853167 | Power supply system | Joseph F. Elek, Jeffrey Glenn Felty, Dennis F. Knurek | 2005-02-08 |
| 6853561 | Power system with zero voltage switching | Joseph F. Elek, Jeffrey Glenn Felty, Dennis F. Knurek | 2005-02-08 |
| 6809941 | Power system having a power factor correction circuit | Joseph F. Elek, Jeffrey Glenn Felty, Dennis F. Knurek | 2004-10-26 |
| 6731524 | Parallel connected DC regulators with power factor corrected rectifier inputs | Joseph F. Elek, Jeffrey Glenn Felty, Dennis F. Knurek | 2004-05-04 |
| 5930123 | Reset circuit for current transformer having a short reset interval | — | 1999-07-27 |
| 5923548 | Active clamp used to maintain proper current transformer operation | — | 1999-07-13 |
| 5864471 | Energy recovery circuit for use in a converter | Bruce Walsh | 1999-01-26 |
| 5654661 | Drive circuit for SCR device | — | 1997-08-05 |
| 5640059 | Power supply system including thermal current limiting protection | Brian D. Goodlive, Zissis L. Kalivas | 1997-06-17 |
| 5619405 | Variable bandwith control for power factor correction | Zissis L. Kalivas | 1997-04-08 |
| 5610508 | Circuitry to maintain proper current transformer operation | — | 1997-03-11 |
| 5563775 | Full bridge phase displaced resonant transition circuit for obtaining constant resonant transition current from 0.degree. phase angle to 180.degree. phase angle | — | 1996-10-08 |
| 4855890 | Power factor correction circuit | — | 1989-08-08 |
| 4761727 | Current sensing circuit for use with decoupled half bridge converter | — | 1988-08-02 |
| 4750076 | Geometric arrangement for filter capacitors | — | 1988-06-07 |
| 4727469 | Control for a series resonant power converter | — | 1988-02-23 |
| 4584595 | Arrangement of field effect transistors for operation in the switched mode at high frequency | — | 1986-04-22 |
| 4566052 | Overvoltage protection circuit for power supply | — | 1986-01-21 |
| 4551668 | Voltage sensing at loads remotely connected to power supplies | — | 1985-11-05 |
| 4525674 | Circuit for synchronizing a switching power supply to a load clock | — | 1985-06-25 |
| 4521842 | Circuit for controlling the volt-ampere characteristic of a load sharing power supply at no load and for inserting a preload | — | 1985-06-04 |
| 4493017 | Single drive transformer with regenerative winding for p.w.m. supply having alternately conducting power devices | Nedyalko V. Ivanov | 1985-01-08 |
| 4468722 | Power supply having slope controlled output volt-ampere characteristic | — | 1984-08-28 |