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QINGHAI SALT LAKE INDUSTRY CO LTD

Overview
  • Total Patents
    241
  • GoodIP Patent Rank
    6,116
  • Filing trend
    ⇧ 30.0%
About

QINGHAI SALT LAKE INDUSTRY CO LTD has a total of 241 patent applications. It increased the IP activity by 30.0%. Its first patent ever was published in 2013. It filed its patents most often in China. Its main competitors in its focus markets materials and metallurgy, chemical engineering and environmental technology are JIANGXI QUCHENG CHEMICAL CO LTD, SOLVAY CHEMICALS INC and K UTEC AG SALT TECH.

Patent filings in countries

World map showing QINGHAI SALT LAKE INDUSTRY CO LTDs patent filings in countries
# Country Total Patents
#1 China 241

Patent filings per year

Chart showing QINGHAI SALT LAKE INDUSTRY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yu Xuefeng 37
#2 Wang Shijun 24
#3 Zhu Hongwei 22
#4 Shi Zhonglu 21
#5 Zhang Zhenjie 20
#6 Huang Long 20
#7 Ma Zhen 19
#8 Qu Xiaorong 19
#9 Li Shumin 18
#10 Li Shengting 17

Latest patents

Publication Filing date Title
CN112250093A Method and system for preparing magnesium chloride
CN112142072A Method and system for producing potassium chloride by internal circulation brine-blending cold crystallization
CN112079404A Light brine concentration system and process
CN112062142A Method and device for preparing potassium chloride by using crude potassium
CN112138462A Method for treating high-sediment carnallite raw ore
CN112010329A Salt pan system of sun-curing carnallite
CN111945658A Salt field isolation dam and construction method thereof
CN111877262A Antiseep structure in old bittern salt pan
CN111943239A Method for passing water production ship
CN111854334A Magnesium chloride fluidized drying tower with outer hanging unloading system
CN111590047A Air extraction valve assembly for vacuum die-casting die
CN111888948A Separation membrane capable of extracting cesium ions in brine and preparation method thereof
CN111874435A A leak protection device for wrapping bag
CN111677055A Fire hydrant
CN111574410A Combined production system of urea and biurea
CN111697083A Device for realizing PN junction effect based on brine environment
CN111592016A Method and system for reducing magnesium-lithium ratio in salt lake brine
CN111675230A Mineral harvesting method for carnallite salt pan
CN111692123A Double-end-face mechanical sealing device for pump
CN111518525A Method and system for preparing binary molten salt