Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7339805 | Power supply having voltage blocking clamp | Rodney C. Hemminger, Fred Schleifer | 2008-03-04 |
| 7239125 | Method and apparatus for electronic meter testing | Rodney C. Hemminger | 2007-07-03 |
| 6954061 | Method and apparatus for electronic meter testing | Rodney C. Hemminger | 2005-10-11 |
| 6940268 | Apparatus for metering at least one type of electrical power over a predetermined range of service voltages | Rodney C. Hemminger, Fred Schleifer | 2005-09-06 |
| 6762598 | Method for providing optical test signals for electronic meter testing | Rodney C. Hemminger | 2004-07-13 |
| 6703823 | Method and apparatus for electronic meter testing | Rodney C. Hemminger | 2004-03-09 |
| 6577961 | Energy meter having programmable functions | Vick A. Hubbard, Rodney C. Hemminger, Scott T. Holdsclaw | 2003-06-10 |
| 6507794 | Energy meter with power quality monitoring systems and methods | Vick A. Hubbard, Rodney C. Hemminger, Scott T. Holdsclaw | 2003-01-14 |
| 6504357 | Apparatus for metering electrical power and electronically communicating electrical power information | Rodney C. Hemminger | 2003-01-07 |
| 6483290 | Apparatus for metering electrical power that determines energy usage data based on downloaded information | Rodney C. Hemminger | 2002-11-19 |
| 6374188 | Energy meter with instrumentation systems and methods | Vick A. Hubbard, Rodney C. Hemminger, Scott T. Holdsclaw | 2002-04-16 |
| 6269316 | System and method for detecting flicker in an electrical energy supply | Vick A. Hubbard, Rodney C. Hemminger, Scott T. Holdsclaw | 2001-07-31 |
| 6229295 | Apparatus for metering at least one type of electrical power over a predetermined range of service voltages | Rodney C. Hemminger, Fred Schleifer | 2001-05-08 |
| 6097182 | Electrical energy meter for 3-wire delta service | Rodney C. Hemminger, Fred Schleifer | 2000-08-01 |
| 6094622 | System and method for automatically determining the electrical energy service type to which an energy meter is connected | Vick A. Hubbard, Rodney C. Hemminger, Scott T. Holdsclaw | 2000-07-25 |
| 5966010 | Electrical energy meter with snap fit interlocking parts | Garry M. Loy, Rodney C. Hemminger, Russell C. Broome | 1999-10-12 |
| 5940009 | Apparatus and method to detect tampering with an electronic utility meter | Garry M. Loy, Kenneth C. Shuey, Rodney C. Hemminger | 1999-08-17 |
| 5903145 | Universal electronic energy meter for use with 4-wire standard services | Rodney C. Hemminger, Fred Schleifer | 1999-05-11 |
| 5631843 | Programmable electrical energy meter and methods therefor | Rodney C. Hemminger | 1997-05-20 |
| 5621629 | Switching power supply for use in an electronic energy meter having a wide range of input voltages | Rodney C. Hemminger, Fred Schleifer | 1997-04-15 |
| 5555508 | Programmable electrical energy meter and methods therefor | Rodney C. Hemminger | 1996-09-10 |
| 5548527 | Programmable electrical energy meter utilizing a non-volatile memory | Rodney C. Hemminger | 1996-08-20 |
| 5544089 | Programmable electrical energy meter using multiplexed analog-to-digital converters | Rodney C. Hemminger | 1996-08-06 |
| 5537333 | Method of determining power measurements in an electrical energy meter | Rodney C. Hemminger | 1996-07-16 |
| 5537029 | Method and apparatus for electronic meter testing | Rodney C. Hemminger | 1996-07-16 |