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DALAI NUR COAL IND CO LTD

Overview
  • Total Patents
    19
  • GoodIP Patent Rank
    88,913
About

DALAI NUR COAL IND CO LTD has a total of 19 patent applications. Its first patent ever was published in 2018. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, transport and measurement are BEIJING SHOUER ENGINEERING TECHNOLOGY CO LTD, CHINA RAILWAY TUNNELING EQUIP and BEIJING XIN NENG ZHENG YUAN ENVIRONMENT TECH CO LTD.

Patent filings in countries

World map showing DALAI NUR COAL IND CO LTDs patent filings in countries
# Country Total Patents
#1 China 19

Patent filings per year

Chart showing DALAI NUR COAL IND CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhang Hongqing 8
#2 Wan Feng 7
#3 Li Shusen 5
#4 Huang Haojun 4
#5 Li Wei 3
#6 Hu Wanchang 3
#7 Li Dejun 3
#8 Feng Liyou 3
#9 Wang Jianguo 3
#10 He Ming 3

Latest patents

Publication Filing date Title
CN111910578A Construction repair method for influencing river bank deformation by collapse and subsidence of coal goaf
CN111852531A Roadway advance support hydraulic support
CN111734412A Thick coal seam layered lapping mining working face equipment model selection matching type
CN111734479A Lapping material transportation system for lapping mining working face
CN111483920A Self-hanging hydraulic support conveyer
CN111486202A Double-cone wheel driving mechanism
CN111396101A Front support device for soft coal rock roadway tunneling and bolting machine and alternate support method
CN111220086A Method for monitoring roadway surrounding rock deformation based on three-dimensional laser scanning
CN111058883A Single hydraulic prop and use method thereof
CN110723467A Upper groove deviation-adjusting frame of strong belt conveyor
CN110939404A Hydraulic joint cutting pressure relief device and method for coal mine tunnel broken surrounding rock roof
CN110843823A Trolley for mine track transportation
CN110842848A Quick extracting tool of fluid coupling ware
CN110682936A Safety device for preventing clamping injury during hook picking
CN110864348A Heating system and heating method adopting pressure fan heat energy recovery device
CN110107284A A kind of brill examining system and method detecting height of water flowing fractured zone by hydraulic pressure
CN109798222A The chain row movement mechanism of hydrostatic driving
CN109676176A The repairing and boring machine of hydraulic support shield beam
CN108590718A Column stops contracting valve