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BEIJING CHENGTIAN HENGYE COAL MINE EQUIPMENT CO LTD

Overview
  • Total Patents
    15
  • GoodIP Patent Rank
    119,522
About

BEIJING CHENGTIAN HENGYE COAL MINE EQUIPMENT CO LTD has a total of 15 patent applications. Its first patent ever was published in 2010. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, transport and packaging and shipping are BERGBAUSTAHL GMBH & CO, TS P KT B MIN TSVETNOJ METALLU and SHIDONG XU.

Patent filings in countries

World map showing BEIJING CHENGTIAN HENGYE COAL MINE EQUIPMENT CO LTDs patent filings in countries
# Country Total Patents
#1 China 15

Patent filings per year

Chart showing BEIJING CHENGTIAN HENGYE COAL MINE EQUIPMENT CO LTDs patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Xu Xingqiang 13
#2 Chen Zhicai 11
#3 Shi Hongqi 10
#4 Wang Hongying 6
#5 Yang Changqing 4
#6 Hu-Yuan Pengfei 4
#7 Zhicai Chen 1
#8 Xingqiang Xu 1
#9 Wang Tao 1
#10 Liu Yuming 1

Latest patents

Publication Filing date Title
CN111852524A Hydraulic support group special for withdrawing coal mine fully-mechanized coal mining face hydraulic support and withdrawing method thereof
CN111749722A Circulation removes tunnel support
CN111156040A Solid-liquid energy absorption device and application thereof in hydraulic support
CN110307020A A kind of mining constant-resistance support hydraulic pressure pillar
CN110307018A A kind of non-uniform wall thickness constant-resistance energy absorption device
CN110307022A A kind of reflexed line deformation constant-resistance energy absorption device
CN110331995A A kind of corrugated constant-resistance energy absorption device
CN110130955A A kind of bush connecting rod formula erosion control bracket
CN110094220A A kind of mining two columns guide rod type erosion control tunnel advanced hydraulic support
CN110094222A A kind of advanced hydraulic prop in underground mine use double-guide-bar type erosion control tunnel
CN110094219A A kind of list column unit erosion control lame advanced supporting hydraulic support
CN108798736A A kind of lame advanced supporting disassembly system and its assembly and disassembly methods
CN108726397A A kind of underground mine use stent-type hydraulic crane device
CN106004899A Mine car capable of being automatically moved out of rail and method
CN101906984A Landing beam sliding hydraulic support system for coal mine