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GEM CO LTD

Overview
  • Total Patents
    77
  • GoodIP Patent Rank
    21,534
  • Filing trend
    ⇧ 600.0%
About

GEM CO LTD has a total of 77 patent applications. It increased the IP activity by 600.0%. Its first patent ever was published in 2002. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and EPO (European Patent Office). Its main competitors in its focus markets environmental technology, materials and metallurgy and electrical machinery and energy are JINGMEN GREEN ECO-MANUFACTURE NEW MAT CO LTD, GUANGDONG JIANA ENERGY TECH CO LTD and GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD.

Patent filings in countries

World map showing GEM CO LTDs patent filings in countries

Patent filings per year

Chart showing GEM CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Xu Kaihua 64
#2 Yan Li 14
#3 Song Qi 12
#4 Liu Zhongwu 11
#5 Zhang Kun 10
#6 Guo Miaomiao 9
#7 Yang Zhengxin 9
#8 Zhang Yuping 8
#9 Chen Kang 7
#10 Li Zhizhuan 7

Latest patents

Publication Filing date Title
CN112280983A Method for selectively separating platinum, palladium and rhodium from automobile waste catalyst leaching solution
CN112142120A Method for producing cobaltosic oxide by calcining aluminum and manganese doped small-particle-size cobalt carbonate
CN112158892A Preparation method of cobalt carbonate for lithium ion battery
CN111994964A Aluminum concentration gradient doped and titanium coated cobaltosic oxide material and preparation method thereof
CN112010356A Lanthanum-aluminum-magnesium in-situ co-doped cobaltosic oxide material and preparation method thereof
CN111799480A Amorphous porous silicon dioxide coated Pt/C catalyst and preparation method thereof
CN111682197A Single crystal type anion and cation co-doped nickel-magnesium binary cobalt-free precursor, positive electrode material and preparation method
CN111584854A Multilayer doped composite multi-element lithium ion battery positive electrode material and preparation method thereof
CN111646521A Preparation method of high-dispersity and high-nickel ternary precursor material
CN111634958A Precursor for lithium battery, lithium battery positive electrode material and preparation method of lithium battery positive electrode material
CN111628149A Gradient-doped high-nickel ternary positive electrode material and preparation method thereof
CN111646522A Cobalt-free precursor for lithium ion battery, positive electrode material and preparation method of cobalt-free precursor
CN110965011A Motor rotor collecting ring repairing device
CN111129463A Preparation method of MOF-coated single crystal ternary cathode material and precursor thereof
CN110899112A Thin slice thickness sorting unit
CN110900889A Treatment system for recycling bumper flake materials
CN110900395A Thin slice surface grinding equipment
CN112010354A Titanium-doped cobaltosic oxide and preparation method and application thereof
CN112010355A Zirconium-doped cobaltosic oxide and preparation method and application thereof
CN109842203A A kind of ups power management system