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LIJUAN MA

Overview
  • Total Patents
    13
About

LIJUAN MA has a total of 13 patent applications. Its first patent ever was published in 2008. It filed its patents most often in China. Its main competitors in its focus markets environmental technology are SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG CO LTD, BEIJING SUPLET CO LTD and HAIAN QIRUI ELECTRONICS CO LTD.

Patent filings in countries

World map showing LIJUAN MAs patent filings in countries
# Country Total Patents
#1 China 13

Patent filings per year

Chart showing LIJUAN MAs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Lijuan Ma 13

Latest patents

Publication Filing date Title
CN102743857A Skidding wheel shoe
CN102698426A Connecting mechanism for wheeled shoe
CN102698427A Multidirectional wheel shoes
CN102641588A Electric skidding device
CN102651617A Multichannel loading drive circuit
CN102412745A Multi-channel load drive circuit
CN102348318A Light emitting diode drive circuit comprising second output
CN102170731A LED drive circuit
CN102176640A Drive circuit capable of setting current value
CN102075073A Novel electro-magnetic interference (EMI) filtering capacitance loss reducing circuit
CN101442268A Low loss power supply
CN101340143A Switch converter of high power factor
CN101257251A Single-stage converter of high power factor