Inventor

LIU JILI

CA49 patents

⚠️ This page may combine multiple inventors who share the name “LIU JILI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LIU JILI

EVOLUTION ENGINEERING INC

Integrated downhole system with plural telemetry subsystems

Downhole electromagnetic and mud pulse telemetry apparatus

Downhole electromagnetic and mud pulse telemetry apparatus

Downhole telemetry signal modulation using pressure pulses of multiple pulse heights

Fluid pressure pulse generator and method of using same

Optimizing downhole data communication with at bit sensors and nodes

Optimizing electromagnetic telemetry transmissions

Integrated downhole system with plural telemetry subsystems

Mounting and component holder apparatuses and assemblies for holding rigid components

Downhole electromagnetic and mud pulse telemetry apparatus

Method and apparatus for multi-channel downhole electromagnetic telemetry

Electromagnetic communications system and method for a drilling operation

Mud pulse telemetry apparatus with a pressure transducer and method of operating same

Fluid pressure pulse generating apparatus and method of using same

System and method for regulating an electromagnetic telemetry signal sent from downhole to surface

Optimizing electromagnetic telemetry transmissions

Mud pulse telemetry apparatus with a pressure transducer and method of operating same

Downhole telemetry

Method and system for transmitting a data frame of an electromagnetic telemetry signal to or from a downhole location

Integrated downhole system with plural telemetry subsystems

Integrated downhole system with plural telemetry subsystems

Downhole electromagnetic and mud pulse telemetry apparatus

Method and apparatus for detecting gamma radiation downhole

Integrated downhole system with plural telemetry subsystems

Electromagnetic communications system and method for a drilling operation

Integrated downhole system with plural telemetry subsystems

Method and system for transmitting a data frame of an electromagnetic telemetry signal to or from a downhole location

Apparatuses and methods for evaluating systems used in electromagnetic telemetry transmissions

Downhole probe assembly with bluetooth device

Downhole telemetry

Downhole electromagnetic and mud pulse telemetry apparatus

Fluid pressure pulse generator and method of using same

Mud pulse telemetry apparatus with a pressure transducer and method of operating same

Downhole electromagnetic and mud pulse telemetry apparatus

Downhole telemetry

Back up directional and inclination sensors and method of operating same

Method and system for transmitting a data frame of an electromagnetic telemetry signal to or from a downhole location

Fluid pressure pulse generator with low and high flow modes for wellbore telemetry and method of using same

Telemetry systems with compensation for signal degradation and related methods

Fluid pressure pulse generator and method of using same

Optimizing downhole data communication with at bit sensors and nodes

Optimizing electromagnetic telemetry transmissions

System and method for managing batteries for use in a downhole drilling application

Back up directional and inclination sensors and method of operating same

Electromagnetic pulse downhole telemetry

System and method for charging a capacitor used to power measurement-while-drilling equipment

ALIBABA GROUP HOLDING LTD

Method, device and system for pushing information

Method, device and system for pushing information

EXTREME ENGINEERING LTD

Multi-conductor plug and socket apparatus