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XI'AN RES INST OF CHINA COAL TECH & ENG GROUP CORP

Overview
  • Total Patents
    46
  • GoodIP Patent Rank
    33,228
  • Filing trend
    ⇩ 100.0%
About

XI'AN RES INST OF CHINA COAL TECH & ENG GROUP CORP has a total of 46 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2014. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, measurement and mechanical elements are INTEGRATED DRILLING SERV LTD, KOBOLD CORP and WELL TECHNOLOGY AS.

Patent filings in countries

World map showing XI'AN RES INST OF CHINA COAL TECH & ENG GROUP CORPs patent filings in countries
# Country Total Patents
#1 China 46

Patent filings per year

Chart showing XI'AN RES INST OF CHINA COAL TECH & ENG GROUP CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tian Hongliang 11
#2 Fan Dong 10
#3 Xu Chao 8
#4 Lu Feifei 7
#5 Chang Jianghua 7
#6 Zhang Yang 6
#7 Yao Ke 6
#8 Wang Hejian 6
#9 Li Quanxin 6
#10 Zou Zujie 6

Latest patents

Publication Filing date Title
CN106869967A The routed sand remote jet disturbance grouting method of driving face gushing water
CN106869791A Underground coal mine air screw motor is oriented hole drill tool combination and construction method
CN106677769A Coal mine underground sound wave transmitting device and method
CN106703703A Openable-closeable drill bit
CN106836354A Rectangle friction pile mechanical hole building device
CN106761398A Coal mine gallery visits diplopore construction split caterpillar drilling machine and construction method in advance
CN106639920A Manual holder with double-layer righting devices and for tunnel drilling machine and holding method
CN106596174A Pressure-maintaining fixed-point sealed collecting method for underground coal mine nearly-horizontal long-distance coal sample
CN106526663A Coal-mine underground horizontal deep-hole multichannel passive detector system and embedded method thereof
CN106499384A Coal bed gas directional well injection/pressure fall-off test test device and its method
CN106567674A Crawler-type high-rotating-speed spiral drilling machine used under coal mine
CN106567685A Ground coal bed sealed core-drilling gas content testing device and method
CN106567739A Mine fire abnormal area detection method based on directional drilling technique
CN106335821A Mechanical hydraulically-driven cable winding device
CN106321541A Electric-hydraulic double-control hydraulic system and method for vehicle-mounted drilling machine
CN106365059A Hydraulic control system and method for winch of core drilling machine
CN106320978A Drawing method of coal seam contour line based on underground location hole
CN106285477A Underground coal mine is adopted gas pumping top board and is faced upward and wear a layer directional hole construction method
CN106368672A Coal dust gathering device and method suitable for aerodynamic caving of coal bed gas well
CN106122133A A kind of unit head multistage rotating speed hydraulic control speed control loop and method