Patent | Date |
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Solid state protection circuits for a converter circuit Grant 11,133,664 - Rajagopalan , et al. September 28, 2 | 2021-09-28 |
Systems And Methods For Recycling Excess Energy App 20210277748 - Rajagopalan; Satish ;   et al. | 2021-09-09 |
System And Method For Improving Rotating Survey Accuracy App 20210180441 - ZACHARKO; Jonathan Peter ;   et al. | 2021-06-17 |
Dynamic generator voltage control for high power drilling and logging-while-drilling Grant 10,972,028 - Rajagopalan April 6, 2 | 2021-04-06 |
System and method for improving rotating survey accuracy Grant 10,961,838 - Zacharko , et al. March 30, 2 | 2021-03-30 |
Flexible collar for a rotary steerable system Grant 10,914,120 - Menger , et al. February 9, 2 | 2021-02-09 |
Overvoltage protection of downhole generators Grant 10,808,503 - Rajagopalan , et al. October 20, 2 | 2020-10-20 |
System And Method For Improving Rotating Survey Accuracy App 20200003042 - ZACHARKO; Jonathan ;   et al. | 2020-01-02 |
Dynamic Generator Voltage Control For High Power Drilling And Logging-while-drilling App 20190363655 - Rajagopalan; Satish | 2019-11-28 |
Dynamic generator voltage control for high power drilling and logging-while-drilling Grant 10,411,626 - Rajagopalan Sept | 2019-09-10 |
Direct current power source with reduced link capacitance for downhole applications Grant 10,408,020 - Rajagopalan , et al. Sept | 2019-09-10 |
Flexible Collar For A Rotary Steerable System App 20190234148 - Menger; Christian ;   et al. | 2019-08-01 |
Overvoltage Protection Of Downhole Generators App 20190048690 - RAJAGOPALAN; Satish ;   et al. | 2019-02-14 |
Independent And Rechargeable Power Supply For A Bottom Hole Assembly App 20190024484 - Rajagopalan; Satish ;   et al. | 2019-01-24 |
Solid State Protection Circuits App 20180351349 - Rajagopalan; Satish ;   et al. | 2018-12-06 |
Magnetic Coupling for Downhole Applications App 20180320482 - Agnihotri; Mukul M. ;   et al. | 2018-11-08 |
Dynamic Generator Voltage Control For High Power Drilling And Logging-while-drilling App 20180287533 - RAJAGOPALAN; Satish | 2018-10-04 |
Direct Current Power Source With Reduced Link Capacitance For Downhole Applications App 20180223632 - Rajagopalan; Satish ;   et al. | 2018-08-09 |
Modular Reconfigurable Medium Voltage Transformer For Data Centers, Volt/var Control, Ac And Dc Charging, And Vehicle-to-grid Applications App 20150183330 - Rajagopalan; Satish ;   et al. | 2015-07-02 |
Medium Voltage Stand Alone Dc Fast Charger App 20130134935 - Maitra; Arindam ;   et al. | 2013-05-30 |
Method and apparatus for vehicle component health prognosis by integrating aging model, usage information and health signatures Grant 8,433,672 - Shin , et al. April 30, 2 | 2013-04-30 |
Photovoltaic integrated variable frequency drive Grant 8,334,616 - Mansoor , et al. December 18, 2 | 2012-12-18 |
Health prognosis for complex system using fault modeling Grant 8,260,493 - Zhang , et al. September 4, 2 | 2012-09-04 |
Method and apparatus to estimate automotive alternator belt slip as a function of battery voltage Grant 8,207,840 - Zhang , et al. June 26, 2 | 2012-06-26 |
Method and apparatus to monitor state of health of electrical connections between battery and generator Grant 8,078,415 - Rajagopalan , et al. December 13, 2 | 2011-12-13 |
Intelligent Photovoltaic Interface And System App 20110273917 - Maitra; Arindam ;   et al. | 2011-11-10 |
Method and apparatus for monitoring solenoid health Grant 8,055,460 - Rajagopalan , et al. November 8, 2 | 2011-11-08 |
Method And Apparatus For Vehicle Component Health Prognosis By Integrating Aging Model, Usage Information And Health Signatures App 20110202494 - Shin; Kwang-Keun ;   et al. | 2011-08-18 |
Health Prognosis For Complex System Using Fault Modeling App 20110202227 - Zhang; Yilu ;   et al. | 2011-08-18 |
Method And Apparatus To Monitor State Of Health Of Electrical Connections Between Battery And Generator App 20110125430 - Rajagopalan; Satish ;   et al. | 2011-05-26 |
Method And Apparatus To Estimate Automotive Alternator Belt Slip App 20110000421 - Zhang; Yilu ;   et al. | 2011-01-06 |
Method and Apparatus for Monitoring Solenoid Health App 20100217545 - Rajagopalan; Satish ;   et al. | 2010-08-26 |
Photovoltaic Integrated Variable Frequency Drive App 20100073969 - Rajagopalan; Satish ;   et al. | 2010-03-25 |