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HENAN YONGHUA ENERGY CO LTD

Overview
  • Total Patents
    23
  • GoodIP Patent Rank
    204,107
About

HENAN YONGHUA ENERGY CO LTD has a total of 23 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 civil engineering, control and packaging and shipping are VESZPREMI SZENBANYAK, KENNEDY WILLIAM R and BONSER ENGINEERING LTD.

Patent filings in countries

World map showing HENAN YONGHUA ENERGY CO LTDs patent filings in countries
# Country Total Patents
#1 China 23

Patent filings per year

Chart showing HENAN YONGHUA ENERGY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Geng Yadong 15
#2 Xue Xiaoxin 13
#3 Wang Ruitao 7
#4 Zha Zhengda 6
#5 Zhang Jianwei 4
#6 Zheng Mingzong 3
#7 Deng Xiaolei 3
#8 Qin Jiwei 3
#9 Jiang Lei 3
#10 Wu Chunfa 3

Latest patents

Publication Filing date Title
CN111608716A Automatic linkage system of air door and track car arrester
CN110908328A Main well residual coal alarm locking transformation system and method
CN110873096A Main well hydraulic station redundant loop transformation system
CN110344857A A kind of safety device handling slip casting accident
CN103711485A Combined type pneumatic pick hung on I-steel support of coal mine
CN104175399A Pneumatic stirring machine
CN104179525A Coal mine blasting blindage and application of coal mine blasting blindage
CN104179510A Mine underground guniting machine runway
CN104179515A Coal mine coal roadway tunneling support post
CN104175277A Safety valve unloading device for single hydraulic prop
CN104176086A Metal mask car for mine car of coal mine
CN104179516A Locking device for operating handle of hydraulic bracket of fully mechanized mining machine
CN103216267A Audible and visual alarming device of chained air door under mine shaft
CN103216228A Handlebar structure of coal cutter
CN103207263A Fixing device for coal mine methane sensor and junction box
CN103216229A Follow-up device of coal mine fully-mechanized coal winning machine belt support
CN103213606A Multi-purpose material conveying vehicle for coal mine tunneling
CN103350706A Mine car masking device
CN103352712A Locking device for operating handle of fully mechanized mining machine
CN102953751A Coal-mine vertical water coal rock powder treater