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YUNNAN YONGCHANG PB & ZN CO LTD

Overview
  • Total Patents
    21
  • GoodIP Patent Rank
    146,112
  • Filing trend
    0.0%
About

YUNNAN YONGCHANG PB & ZN CO LTD has a total of 21 patent applications. It increased the IP activity by 0.0%. Its first patent ever was published in 2010. It filed its patents most often in China. Its main competitors in its focus markets environmental technology, materials and metallurgy and chemical engineering are YUNNAN METALLURG GROUP CO LTD, MANGSHI HAIHUA DEV CO LTD and HUNAN JINWANG BISMUTH IND CO LTD.

Patent filings in countries

World map showing YUNNAN YONGCHANG PB & ZN CO LTDs patent filings in countries
# Country Total Patents
#1 China 21

Patent filings per year

Chart showing YUNNAN YONGCHANG PB & ZN CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhu Guobang 18
#2 He Guangshen 11
#3 Qian Jianbo 10
#4 Wang Jiahuan 9
#5 Li Zumei 9
#6 Zhou Xianchao 8
#7 Jiang Zilin 8
#8 Zhang Zhijun 8
#9 Wang Jiaren 8
#10 Li Yonglian 7

Latest patents

Publication Filing date Title
CN109910940A A kind of driving
CN109931334A Roller linear guide rail device
CN111238290A Method for cleaning manganese dioxide scale in zinc hydrometallurgy heat exchanger pipeline
CN108977660A The method of fluorine removal in Zinc Hydrometallurgy Process
CN107217146A The method containing Zn scrap returns of processing
CN107008574A Flotation agitating device, floatation system and the method for carrying out zinc flotation
CN106219374A Multi-rope friction hoisting machine and head rope replacing options thereof
CN106219358A The tail rope anti-twisting equipment of elevator
CN105969999A Leaching method for zinc sulfide concentrate
CN104773712A Method for preparing sulfuric acid
CN104785356A Method and system for processing leaching residues of zinc hydrometallurgy
CN104593600A Method for processing zinc sulfate solution purification residue
CN103538815A Slag gallery
CN103468953A Method for treating zinc sulfate solution
CN103468952A Method for treating zinc sulfate solution
CN103466558A Method for separating sulfur from zinc sulfide concentrate
CN103451439A Treatment method of residues of zinc sulfate solution after being purified
CN103773950A Horizontal type pressurization leaching reaction kettle
CN102168181A Horizontal type pressure leaching kettle and zinc sulfide concentrate leaching method using same
CN102002602A Method for increasing recovery rates of lead and zinc during lead-zinc sulfide ore dressing-smelting joint application