| Patent | Date |
|---|
Uninterruptible Power Supply System Having Stranded Power Recovery
App 20220173610 - Bush; Terry D. ; et al. | 2022-06-02 |
Uninterruptible power supply system having stranded power recovery
Grant 11,283,289 - Bush , et al. March 22, 2 | 2022-03-22 |
System and method for generator frequency control during UPS power walk-in
Grant 11,183,869 - Bush , et al. November 23, 2 | 2021-11-23 |
Uninterruptible Power Supply System Having Stranded Power Recovery
App 20210126487 - BUSH; Terry D. ; et al. | 2021-04-29 |
System And Method For Generator Frequency Control During Ups Power Walk-in
App 20200321800 - BUSH; Terry D. ; et al. | 2020-10-08 |
Method to reduce inrush currents in a transformer-less rectifier uninterruptible power supply system
Grant 10,439,431 - Blair , et al. O | 2019-10-08 |
System and method for power sharing in a multiple UPS system
Grant 10,404,094 - Bush , et al. Sep | 2019-09-03 |
3-wire transformer-free UPS system and method of control to reduce common mode current
Grant 10,340,733 - Shires , et al. | 2019-07-02 |
Method for balancing power in paralleled converters
Grant 10,277,066 - Bush , et al. | 2019-04-30 |
Real current meter
Grant 9,915,687 - Martin , et al. March 13, 2 | 2018-03-13 |
Techniques for improving operation of static transfer switches during voltage disturbances
Grant 9,876,390 - Bush , et al. January 23, 2 | 2018-01-23 |
Method To Reduce Inrush Currents In A Transformer-Less Rectifier Uninterruptible Power Supply System
App 20170244277 - BLAIR; Charles F. ; et al. | 2017-08-24 |
Systems and methods for balancing UPS output voltages during transitions between operating modes
Grant 9,531,288 - Bush , et al. December 27, 2 | 2016-12-27 |
Operating a static transfer switch to eliminate transformer inrush current in the presence of residual flux
Grant 9,520,874 - Bush , et al. December 13, 2 | 2016-12-13 |
System And Method For Power Sharing In A Multiple Ups System
App 20160336796 - BUSH; Terry D. ; et al. | 2016-11-17 |
Method For Balancing Power In Paralleled Converters
App 20160308389 - BUSH; Terry D. ; et al. | 2016-10-20 |
Real Current Meter
App 20160282390 - MARTIN; James K. ; et al. | 2016-09-29 |
Method And Circuit For Eliminating Transformer Saturation In The Presence Of Dc Offset Voltage
App 20160094209 - BUSH; Terry D. ; et al. | 2016-03-31 |
System and method for improved accuracy in battery resistance measurement systems
Grant 9,268,000 - Bush , et al. February 23, 2 | 2016-02-23 |
3-wire Transformer-free Ups System And Method Of Control To Reduce Common Mode Current
App 20150244206 - SHIRES; Edwin ; et al. | 2015-08-27 |
System And Method For Improved Accuracy In Battery Resistance Measurement Systems
App 20140266224 - BUSH; Terry D. ; et al. | 2014-09-18 |
Systems And Methods For Balancing UPS Output Voltages During Transitions Between Operating Modes
App 20140139022 - BUSH; Terry D. ; et al. | 2014-05-22 |
Techniques For Improving Operation Of Static Transfer Switches During Voltage Disturbances
App 20140132074 - Bush; Terry D. ; et al. | 2014-05-15 |
Operating A Static Transfer Switch To Eliminate Transformer Inrush Current In The Presence Of Residual Flux
App 20140132080 - Bush; Terry D. ; et al. | 2014-05-15 |
Maximized battery run-time in a parallel UPS system
Grant 8,271,146 - Heber , et al. September 18, 2 | 2012-09-18 |
Humidity control for multiple unit A/C system installations
Grant 7,987,023 - Bush , et al. July 26, 2 | 2011-07-26 |
Maximized Battery Run-time In A Parallel Ups System
App 20100082173 - Heber; Brian P. ; et al. | 2010-04-01 |
Maximized battery run-time in a parallel UPS system
Grant 7,668,624 - Heber , et al. February 23, 2 | 2010-02-23 |
Undervoltage Transfer Detection
App 20090251005 - BUSH; Terry D. ; et al. | 2009-10-08 |
Humidity Control For Multiple Unit A/c System Installations
App 20090210095 - Bush; Terry D. ; et al. | 2009-08-20 |
Uninterruptible Power Supply With Rectifier Fast Walk In
App 20090200868 - Christensen; John F. ; et al. | 2009-08-13 |
Method and apparatus for monitoring UPS power sources
Grant 7,566,988 - Heber , et al. July 28, 2 | 2009-07-28 |
Static transfer switch device and method
Grant 7,459,804 - Marwali , et al. December 2, 2 | 2008-12-02 |
Transfer switch device and method
Grant 7,352,082 - Marwali , et al. April 1, 2 | 2008-04-01 |
Maximized Battery Run-time In A Parallel Ups System
App 20070007825 - Heber; Brian P. ; et al. | 2007-01-11 |
Method And Apparatus For Monitoring Ups Power Sources
App 20060290205 - Heber; Brian ; et al. | 2006-12-28 |
Static Transfer Switch Device And Method
App 20050184592 - Marwali, Mohammad N. ; et al. | 2005-08-25 |
Transfer Switch Device And Method
App 20050184591 - Marwali, Mohammad N ; et al. | 2005-08-25 |
Electronic audio signalling device for telephones
Grant 4,214,131 - Bush , et al. * July 22, 1 | 1980-07-22 |
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