Learn more

CHANGZHOU TONGHUI ELECTRONICS CO LTD

Overview
  • Total Patents
    35
  • GoodIP Patent Rank
    47,705
  • Filing trend
    ⇧ 70.0%
About

CHANGZHOU TONGHUI ELECTRONICS CO LTD has a total of 35 patent applications. It increased the IP activity by 70.0%. Its first patent ever was published in 2010. It filed its patents most often in China. Its main competitors in its focus markets measurement, control and electrical machinery and energy are ZHEJIANG FANGYUAN ELECTRICAL EQUIPMENT TESTING CO LTD, BEIJING HUAFENG TEST & CONTROL TECH CO LTD and LANDIS GYR LLC.

Patent filings in countries

World map showing CHANGZHOU TONGHUI ELECTRONICS CO LTDs patent filings in countries
# Country Total Patents
#1 China 35

Patent filings per year

Chart showing CHANGZHOU TONGHUI ELECTRONICS CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhao Haohua 34
#2 Gao Zhiqi 28
#3 Sun Bole 16
#4 Liu Yu 14
#5 Wang Hengbin 14
#6 Wang Nu 10
#7 Zhao Zhijian 7
#8 Su Jinfeng 5
#9 Liu Yaguo 5
#10 Jiang Zewu 5

Latest patents

Publication Filing date Title
CN111175571A Phase-locked loop automatic matching selection circuit for power meter
CN110988752A Capacitance polarity testing method for wire tester
CN109164373A A method of for testing wire rod on-off
CN109031065A Other a pair of test methods of high pressure for wire test instrument
CN109031064A High pressure two for wire test instrument divides test method
CN109030947A The calculation method of electronic load analog DC motor equivalent impedance
CN108663976A Multiple-unit whistle control system
CN108776260A Synchronisation source automatic selection circuit for power meter
CN108562851A A kind of switch detection protection circuit
CN108776505A A kind of high-precision forward adjustable current source circuit
CN108365825A Digital tunable capacitor circuit
CN108418421A Negative voltage transition circuit
CN108871406A A kind of algorithm for finding extremely excellent calibration point
CN108267630A For the sample circuit of high-voltage front end
CN108470104A Equivalent circuit parameter Modeling Calculation method for impedance analyzer
CN108468653A By the driving circuit that conventional fan improvement is intelligent fan
CN108254702A Resistance simulation device based on multiplying-type digital analog converter
CN108267622A A kind of electronic load device with electric voltage reverse-connection defencive function
CN108123607A Alternating current automatic switching control equipment based on voltage method
CN107908135A The Digital Implementation method of DC Electronic Loads soft start