Learn more

LIU ZHENGNAN

Overview
  • Total Patents
    30
  • GoodIP Patent Rank
    52,368
  • Filing trend
    ⇩ 92.0%
About

LIU ZHENGNAN has a total of 30 patent applications. It decreased the IP activity by 92.0%. Its first patent ever was published in 2017. It filed its patents most often in China. Its main competitors in its focus markets electrical machinery and energy, macromolecular chemistry and polymers and mechanical elements are Anhui xigao electric equipment co ltd, HEHE ELECTRICAL CO LTD and SUZHOU SHIJIJINGYUAN OPTIC CO LTD.

Patent filings in countries

World map showing LIU ZHENGNANs patent filings in countries
# Country Total Patents
#1 China 30

Patent filings per year

Chart showing LIU ZHENGNANs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Liu Zhengnan 30

Latest patents

Publication Filing date Title
CN108545455A A kind of swivel open-and-close mechanism
CN107845956A A kind of anti-condensation high-tension switch cabinet
CN107732704A A kind of direct-current power distribution cabinet
CN107919541A Electrical apparatus interstar connection terminal
CN107706015A The anti-water control switch of low pressure
CN107658735A Signboard for low-voltage power distribution cabinet
CN107658118A Current transformer for gas-insulated switchgear
CN107732752A A kind of center-set switching device pressure relief device
CN107732750A A kind of low-voltage complete switch equipment
CN107834421A Inflatable switchgear
CN107778775A A kind of high voltage power distributing cabinet
CN107732705A Electric distribution box
CN107634473A Connection header structure for high-tension switch gear
CN107706761A Inflatable ac metal closing switch gear
CN107706023A A kind of change-over switch
CN107706751A A kind of all insulation enclosed switchgear
CN107906089A A kind of mounting structure of electrical equipment
CN107610989A Fuse mounting insulation tube
CN107634459A Low-voltage cabinet variable orifice common bottom plate
CN107919565A A kind of power cable device