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HENAN DONGDA MINING CO LTD

Overview
  • Total Patents
    33
  • GoodIP Patent Rank
    62,551
About

HENAN DONGDA MINING CO LTD has a total of 33 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 packaging and shipping and machines are NANTONG UP MACHINERY ENG CO LTD, Tianjin shida electric power equipment co ltd and SHIBANG INDUSTRIAL TECH GROUP CO LTD.

Patent filings in countries

World map showing HENAN DONGDA MINING CO LTDs patent filings in countries
# Country Total Patents
#1 China 33

Patent filings per year

Chart showing HENAN DONGDA MINING CO LTDs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Wang Xiufeng 29
#2 Li Minjing 29
#3 Li Shaoshuai 27
#4 Li Junwei 22
#5 Li Xinhua 12
#6 Zhang Songmao 9
#7 Zhang Yanxi 5
#8 Lan Jianhou 3
#9 Zhang Zhihong 3
#10 Xiufeng Wang 2

Latest patents

Publication Filing date Title
CN105126957A Crushing-grinding method for bauxite waste slag high-pressure rolling-grinding
CN105127010A Charging combination device of monohydrallite direct flotation tallings filter press
CN105056592A Filter press reverse-blowing pressure release muffling device
CN104984915A Powerless steel ball classification device
CN104841568A Bauxite rapid direct flotation method
CN104991038A Distinguishing method for pH value of bauxite direct flotation ore
CN104858069A Method for quick judging of quality of low-grade bauxite direct flotation tailing flocculating agent
CN104891216A Bauxite waste residue proportioning and homogenizing method
CN104841567A Flow mixing method for bauxite forward flotation
CN104845710A Preparation method of ball mill big and small gear wheel lubricating oil
CN104722411A Discharging and liquid level adjusting device of three-step microbubble self-circulation flotation machine
CN104645713A Manufacturing method of pressure filtration separation filter cloth for direct flotation separation tailings for bauxite
CN104689640A Manufacturing method for bauxite direct flotation concentrate press-filtering and separation filter cloth
CN104624382A Multi-point adding method of monohydrallite direct flotation collecting agent
CN104258943A Ball mill steel ball and steel forging match grinding and filling ball selection method
CN104101555A Method for quickly measuring concentrate filter cake attached water through microwave and light-wave oven
CN104089843A Method for quickly measuring attached water of tailing cakes in micro-light wave furnace
CN104069655A Diluting antifoaming method for concentrate groove of direct-flotation concentrate bauxite pulp
CN104139534A Method for repairing polypropylene filter plate of plate-and-frame filter press
CN103934118A Bauxite beneficiation water circulation recycling method