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NA QU

Overview
  • Total Patents
    11
About

NA QU has a total of 11 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 INST T MIKROELEKTRONIKI I OSOB, SUZHOU QIZHI ELECTROMECHANICAL TECHNOLOGY CO LTD and G OBRAZOVATEL NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL NOGO OBRAZOVANIJA DAL NEVOSTOCHNYJ GTU DVPI IM.

Patent filings in countries

World map showing NA QUs patent filings in countries
# Country Total Patents
#1 China 11

Patent filings per year

Chart showing NA QUs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Na Qu 11

Latest patents

Publication Filing date Title
CN101666852A Arcing and corona detection system for overhead power line with power supplied by induction current in high-voltage alternating electric field
CN101655397A Internal temperature on-line testing method of zinc oxide lightning protector with high-voltage capacitors connected in parallel
CN101635464A Magnetic control transient reactive power compensation method
CN101635546A Motor current regulator based on principle of giant magnetic effect
CN101662151A Controllable reactive power absorption inductor for power network
CN101634684A Scheme of on-line insulating detection of cables by power factor of zero sequence leakage current of cables
CN101615787A A kind of relaying protection implementation method that is applied to cable line based on the line double-end data
CN101588064A Intelligent neutral point harmonic elimination apparatus
CN101561473A Method for precisely selecting single-phase earth faulty line for system with non-effectively earthed neutral point
CN101435847A Low current grounding DC signal wire selecting method
CN101425677A Anti-fraud induction motor protector