Inventor
XU MINGDONG
CA24 patents
⚠️ This page may combine multiple inventors who share the name “XU MINGDONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EVOLUTION ENGINEERING INC
23 patentsUS9605535B2Mar 28, 2017
Integrated downhole system with plural telemetry subsystems
EVOLUTION ENGINEERING INC13 citations92
US9291049B2Mar 22, 2016
Downhole electromagnetic and mud pulse telemetry apparatus
EVOLUTION ENGINEERING INC11 citations92
US10066481B2Sep 4, 2018
Downhole electromagnetic and mud pulse telemetry apparatus
EVOLUTION ENGINEERING INC7 citations84
US9574441B2Feb 21, 2017
Downhole telemetry signal modulation using pressure pulses of multiple pulse heights
EVOLUTION ENGINEERING INC7 citations84
US9765615B2Sep 19, 2017
Optimizing electromagnetic telemetry transmissions
EVOLUTION ENGINEERING INC6 citations82
US11073015B2Jul 27, 2021
Integrated downhole system with plural telemetry subsystems
EVOLUTION ENGINEERING INC1 citations73
US10215021B2Feb 26, 2019
Downhole electromagnetic and mud pulse telemetry apparatus
EVOLUTION ENGINEERING INC1 citations73
US9771792B2Sep 26, 2017
Method and apparatus for multi-channel downhole electromagnetic telemetry
EVOLUTION ENGINEERING INC4 citations73
US9719345B2Aug 1, 2017
Electromagnetic communications system and method for a drilling operation
EVOLUTION ENGINEERING INC2 citations73
US9988897B2Jun 5, 2018
Optimizing electromagnetic telemetry transmissions
EVOLUTION ENGINEERING INC2 citations71
US9988896B2Jun 5, 2018
Method and system for transmitting a data frame of an electromagnetic telemetry signal to or from a downhole location
EVOLUTION ENGINEERING INC1 citations63
US11649720B2May 16, 2023
Integrated downhole system with plural telemetry subsystems
EVOLUTION ENGINEERING INC0 citations62
US11359483B2Jun 14, 2022
Integrated downhole system with plural telemetry subsystems
EVOLUTION ENGINEERING INC0 citations62
US9435196B2Sep 6, 2016
Downhole electromagnetic and mud pulse telemetry apparatus
EVOLUTION ENGINEERING INC2 citations62
US10731459B2Aug 4, 2020
Integrated downhole system with plural telemetry subsystems
EVOLUTION ENGINEERING INC0 citations52
US10443374B2Oct 15, 2019
Electromagnetic communications system and method for a drilling operation
EVOLUTION ENGINEERING INC0 citations52
US10253621B2Apr 9, 2019
Integrated downhole system with plural telemetry subsystems
EVOLUTION ENGINEERING INC0 citations52
US10202844B2Feb 12, 2019
Method and system for transmitting a data frame of an electromagnetic telemetry signal to or from a downhole location
EVOLUTION ENGINEERING INC0 citations52
US9903198B2Feb 27, 2018
Downhole electromagnetic and mud pulse telemetry apparatus
EVOLUTION ENGINEERING INC0 citations52
US9752429B2Sep 5, 2017
Downhole electromagnetic and mud pulse telemetry apparatus
EVOLUTION ENGINEERING INC0 citations52
US9664038B2May 30, 2017
Method and system for transmitting a data frame of an electromagnetic telemetry signal to or from a downhole location
EVOLUTION ENGINEERING INC1 citations52
US10233747B2Mar 19, 2019
Optimizing electromagnetic telemetry transmissions
EVOLUTION ENGINEERING INC0 citations51
US9995134B2Jun 12, 2018
Electromagnetic pulse downhole telemetry
EVOLUTION ENGINEERING INC0 citations42