Inventor
FENG GUORUI
CN15 patents
Patents
15 patentsUS12571293B2Mar 10, 2026
Method for remining residual coal pillar in residual mining area by collaboration of pillar-side backfilling and in-situ gasification
UNIV TAIYUAN TECHNOLOGY0 citations59
US10690649B2Jun 23, 2020
Supercritical CO2 reactor and test system of creepage, diffusion and erosion of rock mass
UNIV TAIYUAN TECHNOLOGY1 citations54
US12025590B2Jul 2, 2024
Loading system and method for Hopkinson compression bar test under water-gas-temperature multi-field coupling action
UNIV TAIYUAN TECHNOLOGY0 citations48
US11788930B2Oct 17, 2023
Device and method for testing bearing capacity of single-row grouped pillars in horizontal goaf under biaxial loading
UNIV TAIYUAN TECHNOLOGY0 citations47
US12492634B2Dec 9, 2025
Electric-pulse fracturing device and method for hard roof of coal mine based on self-sealing water bag
UNIV TAIYUAN TECHNOLOGY0 citations46
US12571308B2Mar 10, 2026
Method for recovering residual coal pillars by Freezing water accumulated in room-and-pillar mining area
UNIV TAIYUAN TECHNOLOGY0 citations45
US11835491B2Dec 5, 2023
Device and method for testing bearing capacity of grouped pillars in inclined goaf under coupled biaxial static and disturbance stresses
UNIV TAIYUAN TECHNOLOGY0 citations45
US12359568B2Jul 15, 2025
Method for backfilling and reconstructing carbon storage space in abandoned main roadway and storing CO2
UNIV TAIYUAN TECHNOLOGY0 citations44
US11703431B2Jul 18, 2023
Device and method for testing tensile resistance of multiple-row grouped pillars in inclined goaf
UNIV TAIYUAN TECHNOLOGY0 citations44
US12098637B2Sep 24, 2024
I-patterned filling method for initial stage of coal mining based on roof fracture feature characteritics
UNIV TAIYUAN TECHNOLOGY0 citations42
US11959383B2Apr 16, 2024
Method and device for carrying out grouting between adjacent gateroads in internal-staggered split-level coal mining
UNIV TAIYUAN TECHNOLOGY0 citations42
US11473427B2Oct 18, 2022
Physical simulation test method for detecting position of ponding goaf in excavation
UNIV TAIYUAN TECHNOLOGY0 citations42
US11203095B2Dec 21, 2021
Flexible sanding device for cylinder rock specimen
UNIV TAIYUAN TECHNOLOGY0 citations42
US12221888B2Feb 11, 2025
Ventilation method for high gas working face based on alternating intake and air return in mine gallery
UNIV TAIYUAN TECHNOLOGY0 citations41
US10809417B2Oct 20, 2020
Three-dimensional analog simulation test system for gas-liquid countercurrent in abandoned mine goaf
UNIV TAIYUAN TECHNOLOGY0 citations34