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ZENG QINGDONG

Overview
  • Total Patents
    12
  • GoodIP Patent Rank
    142,722
About

ZENG QINGDONG has a total of 12 patent applications. Its first patent ever was published in 2014. It filed its patents most often in China. Its main competitors in its focus markets environmental technology are SOTSKOV NIKOLAJ A, JUHASZ and NO 707 RES INST OF CHINA SHIPBUILDING INDUSTRY CORP.

Patent filings in countries

World map showing ZENG QINGDONGs patent filings in countries
# Country Total Patents
#1 China 12

Patent filings per year

Chart showing ZENG QINGDONGs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Zeng Qingdong 12

Latest patents

Publication Filing date Title
CN105591639A Optical sensor infrared driving circuit
CN105511301A Switch matrix bus control system
CN105591642A Capacitive sensing relaxation oscillator
CN105591577A DSP-based three-axis stepping motor control system
CN105589496A Digital control alternating current stabilized voltage power supply
CN105515341A Enclosed type frequency converter
CN105589006A Resistor-assisted capacitor leakage measurement device
CN105515567A Infrared transmitting tube driving circuit
CN105515373A Non-isolation type switch power supply with high-power factor correction
CN105514798A DSP-based semiconductor laser
CN105588967A Wheatstone bridge for multi-core cable on-state resistance measurement
CN105510811A Switch matrix test system based on bus transfer