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OU YAN

Overview
  • Total Patents
    32
  • GoodIP Patent Rank
    180,216
  • Filing trend
    ⇩ 100.0%
About

OU YAN has a total of 32 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2009. It filed its patents most often in China. Its main competitors in its focus markets environmental technology, materials and metallurgy and basic materials chemistry are CHINA NERIN ENG CO LTD, YUNNAN CHIHONG ZINC & GERMANIUM CO LTD and YUNNAN METALLURG GROUP CO LTD.

Patent filings in countries

World map showing OU YANs patent filings in countries
# Country Total Patents
#1 China 32

Patent filings per year

Chart showing OU YANs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ou Yan 32
#2 Luo Nina 1
#3 Li Deping 1
#4 Liu Gongyan 1

Latest patents

Publication Filing date Title
CN110200419A A kind of novel transfusion bottle storing compartment and its access method
CN107999106A A kind of vanadium catalyst for manufacture of sulfuric acid and preparation method thereof
CN107777808A A kind of method of sewage disinfection treatment in hydrogen dioxide solution production by anthraquinone process industry
CN107828970A A kind of method of the recovery indium from the material containing indium of zinc abstraction
CN107857621A A kind of particle magnesium sulfate fertilizer and preparation method thereof
CN107779605A A kind of method that aluminium is extracted in the ash from aluminium
CN107955886A A kind of method that indium is extracted from rich indium alkali oxidation scum
CN103039340A Sprout vegetable nursery bed frame
CN103210821A Jumble bead sprout stock vegetable culturing method
CN103026879A Cultivating method of double-cane bud seedling vegetable
CN103039306A Intelligent control system for industrial production of sprout vegetables
CN103026878A Cultivating method of alfalfa sprouts
CN103039237A Vanilla sprout vegetable cultivation method
CN103026953A Cultivating method of pine willow bud seedling vegetable
CN103026881A Cultivation method for broad bean sprout vegetables
CN103026954A Ecological industrialized process for producing sprout vegetables
CN103210755A Cultivating method of oil sunflower sprouts
CN103026922A Intelligent planting greenhouse
CN103026880A Cultivating method of lysimachia insignis hemsl bud seedling vegetable
CN103039332A Chinese toon sprout vegetable cultivation method