Inventor
LIU CHANGJIANG
CN8 patents
⚠️ This page may combine multiple inventors who share the name “LIU CHANGJIANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UNIV CHINA MINING
4 patentsUS11035228B2Jun 15, 2021
Simulation test system for gas extraction from tectonically-deformed coal seam in-situ by depressurizing horizontal well cavity
UNIV CHINA MINING0 citations44
US10995572B2May 4, 2021
Simulation test method for gas extraction from tectonically-deformed coal seam in-situ by depressurizing horizontal well cavity
UNIV CHINA MINING0 citations44
US10934817B2Mar 2, 2021
System for extracting gas from tectonically-deformed coal seam in-situ by depressurizing horizontal well cavity
UNIV CHINA MINING0 citations44
US10830018B1Nov 10, 2020
Method of extracting gas from tectonically-deformed coal seam in-situ by depressurizing horizontal well cavity
UNIV CHINA MINING0 citations34
SUNON TECH CO LTD
3 patentsUS12433414B2Oct 7, 2025
Armrest installation structure
SUNON TECH CO LTD1 citations59
US12520943B2Jan 13, 2026
Quick-assembly structure for chassis and back frame of chair and chair
SUNON TECH CO LTD0 citations45
US12440028B2Oct 14, 2025
Quick-assembly structure for chassis and seat cushion of chair
SUNON TECH CO LTD0 citations42