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GUIZHOU ZIJIN MINING CO LTD

Overview
  • Total Patents
    11
  • GoodIP Patent Rank
    155,418
About

GUIZHOU ZIJIN MINING CO LTD has a total of 11 patent applications. Its first patent ever was published in 2014. It filed its patents most often in China. Its main competitors in its focus markets environmental technology, civil engineering and materials and metallurgy are TATABANYAI SZENBANYAK, HOLLUX SA and DARLOW LLOYD & SONS LTD.

Patent filings in countries

World map showing GUIZHOU ZIJIN MINING CO LTDs patent filings in countries
# Country Total Patents
#1 China 11

Patent filings per year

Chart showing GUIZHOU ZIJIN MINING CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tang Shunchang 5
#2 Zhu Lishen 5
#3 Tang Kuangren 4
#4 Guan Gonghua 4
#5 Chen Yanmiao 4
#6 Luo Laihe 3
#7 Zhao Wei 3
#8 Tang Pengshan 3
#9 Zhang Na 3
#10 Cheng Zhuxiang 2

Latest patents

Publication Filing date Title
CN111997611A Steeply inclined ore body inclination raise sublevel mining method
CN112011695A Method for breaking alum and extracting gold from cyanidation tailings in pressurization pre-oxidation
CN111888881A Gold recovery device in gold refining waste gas
CN110540272A Coagulation deep arsenic removal system and arsenic removal method
CN110342688A The method that waste acid integrated use is handled in cyanogen slag harmlessness
CN110331287A A kind of Carlin-type gold ore pressure pre-oxidation soda boiling extraction of gold process
CN110318786A A method of slip casting is carried out to ore body as injecting paste material and is harnessed the river with ointment material using in pressure pre-oxidation tailing
CN108503248A A method of doing aggregate using superfine granule lightweight calcium and magnesium gelling ointment material
CN108590747A Wall type allwork hydraulic column gib afterwards filling method
CN104962751A Pretreatment gold extraction method of low-grade breccia type difficultly-treated gold ore
CN104722408A Method for recycling gold in cyanided tailings in ramified and series flotation mode