| Patent | Date |
|---|
Apparatus And Method For Drill Motor Racking Of Switchgear
App 20220239075 - Ledbetter; Finley Lee ; et al. | 2022-07-28 |
Method for replacement of mercury switches in a switchgear with alternative switch types
Grant 10,804,057 - Ledbetter October 13, 2 | 2020-10-13 |
Flexible magnetic field coil for measuring ionic quantity
Grant 10,712,312 - Ledbetter | 2020-07-14 |
Wearable partial discharge detector
Grant 10,670,667 - Ledbetter | 2020-06-02 |
Method for reconditioning of vacuum interrupters
Grant 10,566,158 - Ledbetter Feb | 2020-02-18 |
Drive unit for circuit breakers, switchgear, and motor control centers
Grant 10,566,772 - Ledbetter , et al. Feb | 2020-02-18 |
Method For Replacement Of Mercury Switches In A Switchgear With Alternative Switch Types
App 20190221387 - Ledbetter; Finley Lee | 2019-07-18 |
System and method for vibration analysis
Grant 10,345,141 - Ledbetter July 9, 2 | 2019-07-09 |
Method For Reconditioning Of Vacuum Interrupters
App 20190180962 - Ledbetter; Finley Lee | 2019-06-13 |
Method for remote installation or removal of circuit breakers
Grant 10,103,522 - Ledbetter October 16, 2 | 2018-10-16 |
System and method to predict a usable life of a vacuum interrupter in the field
Grant 10,036,727 - Ledbetter July 31, 2 | 2018-07-31 |
Drive Unit For Circuit Breakers, Switchgear, And Motor Control Centers
App 20180131164 - Ledbetter; Finley Lee ; et al. | 2018-05-10 |
Method to predict a usable life of a vacuum interrupter in the field
Grant 9,952,178 - Ledbetter April 24, 2 | 2018-04-24 |
System And Method To Predict A Usable Life Of A Vacuum Interrupter In The Field
App 20170336354 - Ledbetter; Finley Lee | 2017-11-23 |
Electromagnetic test device to predict a usable life of a vacuum interrupter in the field
Grant 9,797,865 - Ledbetter October 24, 2 | 2017-10-24 |
System and method to predict a usable life of a vacuum interrupter in the field
Grant 9,759,773 - Ledbetter September 12, 2 | 2017-09-12 |
Wearable Partial Discharge Detector
App 20170248644 - Ledbetter; Finley Lee | 2017-08-31 |
Flexible Magnetic Field Coil For Measuring Ionic Quantity
App 20160252480 - Ledbetter; Finley Lee | 2016-09-01 |
Portable racking tool for electric equipment replacement
Grant 9,413,144 - Ledbetter , et al. August 9, 2 | 2016-08-09 |
Method For Remote Installation Or Removal Of Circuit Breakers
App 20160181770 - Ledbetter; Finley Lee | 2016-06-23 |
Flexible magnetic field coil for measuring ionic quantity
Grant 9,335,378 - Ledbetter May 10, 2 | 2016-05-10 |
Remote racking tool
Grant 9,275,813 - Ledbetter March 1, 2 | 2016-03-01 |
System and Method to Predict a Usable Life of a Vacuum Interrupter in the Field
App 20150285863 - Ledbetter; Finley Lee | 2015-10-08 |
Method To Predict A Usable Life Of A Vacuum Interrupter In The Field
App 20150226803 - Ledbetter; Finley Lee | 2015-08-13 |
Electromagnetic Test Device To Predict A Usable Life Of A Vacuum Interrupter In The Field
App 20150226804 - Ledbetter; Finley Lee | 2015-08-13 |
Electromagnetic test device to predict a usable life of a vacuum interrupter in the field
Grant 9,031,795 - Ledbetter May 12, 2 | 2015-05-12 |
Portable racking tool for electric equipment replacement
Grant 9,021,686 - Ledbetter , et al. May 5, 2 | 2015-05-05 |
Method to predict a usable life of a vacuum interrupter in the field
Grant 9,026,375 - Ledbetter May 5, 2 | 2015-05-05 |
Device for installing and/or removing components from electrical equipment
Grant 8,896,162 - Ledbetter November 25, 2 | 2014-11-25 |
Remote racking tool
Grant 8,671,556 - Ledbetter March 18, 2 | 2014-03-18 |
System And Method For Vibration Analysis
App 20140069195 - Ledbetter; Finley Lee | 2014-03-13 |
Portable racking tool for electric equipment replacement and method for replacing electrical components
Grant 8,519,660 - Ledbetter , et al. August 27, 2 | 2013-08-27 |
Portable charge close trip device
Grant 8,466,584 - Ledbetter , et al. June 18, 2 | 2013-06-18 |
Flexible Magnetic Field Coil For Measuring Ionic Quantity
App 20130147590 - Ledbetter; Finley Lee | 2013-06-13 |
Portable motorized frame remote racking tool
Grant 8,390,975 - Ledbetter , et al. March 5, 2 | 2013-03-05 |
Remote switch operator controller
Grant 8,325,078 - Ledbetter , et al. December 4, 2 | 2012-12-04 |
Lightweight portable electrical equipment racking tool
Grant 8,307,545 - Ledbetter , et al. November 13, 2 | 2012-11-13 |
Charge device with solenoid on frame
Grant 8,294,304 - Ledbetter , et al. October 23, 2 | 2012-10-23 |
Modular charge close trip device
Grant 8,294,305 - Ledbetter , et al. October 23, 2 | 2012-10-23 |
Portable racking tool for electric equipment replacement and method for replacing electrical components
Grant 8,261,433 - Ledbetter , et al. September 11, 2 | 2012-09-11 |
Remote switch operator
Grant 8,228,225 - Ledbetter , et al. July 24, 2 | 2012-07-24 |
Portable motorized frame remote racking tool
Grant 8,164,875 - Ledbetter , et al. April 24, 2 | 2012-04-24 |
Motor controlled bucket replacement tool
Grant 8,161,631 - Ledbetter , et al. April 24, 2 | 2012-04-24 |
Portable battery operated motorized racking tool
Grant 8,156,639 - Ledbetter , et al. April 17, 2 | 2012-04-17 |
Portable electrical equipment racking tool
Grant 8,151,452 - Ledbetter April 10, 2 | 2012-04-10 |
Method for remotely operating a switch
Grant 8,006,371 - Ledbetter August 30, 2 | 2011-08-30 |
Portable remote switch operator system
Grant 7,804,201 - Ledbetter September 28, 2 | 2010-09-28 |
Portable Electrical Equipment Racking Tool
App 20100024191 - Ledbetter; Finley Lee | 2010-02-04 |
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