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GUIZHOU YONGRUN COAL INDUSTRY CO LTD

Overview
  • Total Patents
    12
About

GUIZHOU YONGRUN COAL INDUSTRY CO LTD has a total of 12 patent applications. Its first patent ever was published in 2012. It filed its patents most often in China. Its main competitors in its focus markets machine tools and mechanical elements are NICHIBEN TOKUSHU KOGYO KK, TIANJIN BINHAI NEW DISTR CHANGZHICHENG COMMERCE AND TRADE CO LTD and SONG JIANYONG.

Patent filings in countries

World map showing GUIZHOU YONGRUN COAL INDUSTRY CO LTDs patent filings in countries
# Country Total Patents
#1 China 12

Patent filings per year

Chart showing GUIZHOU YONGRUN COAL INDUSTRY CO LTDs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Wang Dong 10
#2 Zhang Baodong 9
#3 Song Laiwu 8
#4 Guo Huanhuan 7
#5 Hu Jiayu 5
#6 Du Mingfeng 4
#7 Wang Xiyin 4
#8 Zhang Zhen 4
#9 Zhang Yuangui 3
#10 Wang Kunming 3

Latest patents

Publication Filing date Title
CN103663140A Method and device for assembling and lifting roadheader
CN103672275A Method and structure for improving strength of water supply elbow of rock drill
CN103662713A Method and device for cleaning away coal slime in grooves of belt
CN103662655A Belt type non-return device for belt conveyor
CN103659674A Roadheader cutting head assembling tool
CN103683703A Method and device for automatically cutting lacquered wire of electric motor
CN103711433A Roadheader-mounted hydraulic drilling rig
CN103693574A Pneumatic puffer and method for modifying 90 drilling machine into pneumatic puffer
CN103683133A Method and device for fixing single cable of integrated excavator
CN103511822A Method and device for gadder oil injection
CN103028755A Method and device for improving processing efficiency of drilling machine
CN102756999A Convenient and fast hydraulic support lifting device