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HEBEI IRON & STEEL GROUP MINING CO LTD

Overview
  • Total Patents
    62
  • GoodIP Patent Rank
    37,552
  • Filing trend
    ⇧ 133.0%
About

HEBEI IRON & STEEL GROUP MINING CO LTD has a total of 62 patent applications. It increased the IP activity by 133.0%. 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, computer technology and materials and metallurgy are LINYI HUI BAO LING IRON CO LTD, INNER MONGOLIA YITAI COAL CO LTD and CHINA COAL ENERGY RES INSTITUTE CO LTD.

Patent filings in countries

World map showing HEBEI IRON & STEEL GROUP MINING CO LTDs patent filings in countries
# Country Total Patents
#1 China 62

Patent filings per year

Chart showing HEBEI IRON & STEEL GROUP MINING CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Nan Shiqing 22
#2 Chen Yanting 11
#3 Wang Lei 9
#4 Yang Nan 9
#5 Shiqing Nan 8
#6 Hu Yajun 8
#7 Zhang Chunfang 7
#8 Song Aidong 6
#9 Gao Qian 6
#10 Hu Weiwei 6

Latest patents

Publication Filing date Title
CN112177019A Slope protection method
CN112258799A Mine electrical equipment system of patrolling and examining
CN112085617A Optimal ore blending method for surface mine
CN111878082A Mining method for mining room containing single low-subsection Min goaf
CN111324950A Design method of low-cost composite excitation filling cementing material
CN111370076A Filling slurry proportion optimization method for subsequent filling method mining
CN111312344A Optimization method of full-solid waste cementing material and mixed aggregate filling slurry
CN111191387A Phosphogypsum-based cementing material optimization method for improving filling roof contact rate
CN111170707A Filling slurry optimization method for mining waste rock by downward layered filling method
CN111140269A Multi-working-face single-head tunneling ventilation system for metal underground mine infrastructure period
CN111126692A Method for predicting dilution rate of loss rate of surface mine
CN110920386A Automatic manual driving mechanical structure of 220-ton electric wheel dumper
CN110847911A Vertical shaft tunneling construction method for passing through thin quicksand layer
CN110631652A Water level measuring device and method for wetting line observation tube
CN110339942A A kind of multi-functional magnetic separator of inner tube type suitable for oxide ore pre-selecting before grinding
CN109821650A A kind of high silicon bloodstone tailing treatment technology
CN109870101A Slope of stope deformation real-time monitoring system based on satellite positioning
CN109599796A Multi-purpose assembly type cable unwinding device suitable for slope terrain
CN109595025A A kind of air return structure of Underground Metallic Mines
CN109779679A Efficient slag-tapping system and method when Ore-pass failure is constructed