Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9716431 | IGBT/FET-based energy savings device for reducing a predetermined amount of voltage using pulse width modulation | — | 2017-07-25 |
| 9716449 | Energy saving system and method for devices with rotating or reciprocating masses | Paul H. Kelley, Vasan Venkataraman | 2017-07-25 |
| 9628015 | Energy saving system and method for devices with rotating or reciprocating masses | Paul H. Kelley, Vasan Venkataraman | 2017-04-18 |
| 8823314 | Energy saving system and method for devices with rotating or reciprocating masses | Paul H. Kelley, Vasan Venkataraman | 2014-09-02 |
| 8723488 | IGBT/FET-based energy savings device for reducing a predetermined amount of voltage using pulse width modulation | — | 2014-05-13 |
| 8698447 | Energy saving system and method for devices with rotating or reciprocating masses | Paul H. Kelley, Vasan Venkataraman | 2014-04-15 |
| 8619443 | System and method to boost voltage | — | 2013-12-31 |
| 8120307 | System and method for providing constant loading in AC power applications | — | 2012-02-21 |
| 8085010 | TRIAC/SCR-based energy savings device for reducing a predetermined amount of voltage using pulse width modulation | — | 2011-12-27 |
| 8085009 | IGBT/FET-based energy savings device for reducing a predetermined amount of voltage using pulse width modulation | — | 2011-12-27 |
| 8004255 | Power supply for IGBT/FET drivers | — | 2011-08-23 |
| 6678176 | Method and apparatus for a solar power conditioner | — | 2004-01-13 |
| 6662821 | System and method for closing an existing valve in response to a detected leak | Ron Jacobsen, Jack W. Craig | 2003-12-16 |
| 6489742 | Efficiency maximizing motor controller and method | — | 2002-12-03 |
| 6351400 | Method and apparatus for a solar power conditioner | — | 2002-02-26 |
| 5481225 | Variable gain differential amplifier circuit | Alan Flum | 1996-01-02 |
| 5299266 | Multi machine monitor for TV post production | — | 1994-03-29 |
| 5259034 | Voice over circuitry with adjustable depth of fade | — | 1993-11-02 |
| 5227735 | Technique to drive transformer coupled line amplifier | — | 1993-07-13 |
| 4659981 | Input transformer circuit | — | 1987-04-21 |