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Zhangzhou kehua technology co ltd

Overview
  • Total Patents
    116
  • GoodIP Patent Rank
    13,205
  • Filing trend
    ⇧ 90.0%
About

Zhangzhou kehua technology co ltd has a total of 116 patent applications. It increased the IP activity by 90.0%. Its first patent ever was published in 2011. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and EPO (European Patent Office). Its main competitors in its focus markets electrical machinery and energy, environmental technology and measurement are SUNGSHIN ELECTRIC CO LTD, GUANGDONG HALO MICROELECTRONICS CO LTD and FOSHAN UNIPOWER ELECTRONIC CO LTD.

Patent filings in countries

World map showing Zhangzhou kehua technology co ltds patent filings in countries

Patent filings per year

Chart showing Zhangzhou kehua technology co ltds patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wang Dingfu 38
#2 Shi Xuelei 28
#3 Cui Fujun 19
#4 Gao Lihong 18
#5 Xu Min 17
#6 Cai Zhongshan 17
#7 Zeng Yizhang 14
#8 Zhong Weilong 13
#9 Zhang Baosen 12
#10 Chen Yangyuan 9

Latest patents

Publication Filing date Title
CN112260528A Control method and device of three-phase PWM converter and terminal equipment
CN112234702A Power supply device and UPS
CN112054686A Control method based on converter circuit and related device
CN112054700A Conversion circuit
CN112039352A UPS control method
CN112039313A Auxiliary power supply device, control method of auxiliary power supply device, and converter
CN111740607A Circuit control device
CN111740606A Circuit control device and circuit control method
CN111711346A Drive signal updating method applied to switching tube control circuit and related device
CN111708291A DSP information mutual transmission method for domestic chip
CN111752189A DSP carrier synchronization method and system for domestic chip
CN111740573A Power switch interlocking driving method of domestic power conversion circuit and interlocking driving circuit thereof
CN111555742A Combination switch element and uninterrupted power source
CN111313536A Phase difference self-adaptive compensation method and terminal equipment
CN111446871A Phase control rectification circuit control method and device and related components
CN111446870A Phase control rectification circuit control method and device and related components
CN111257716A IGBT over-current detection circuit, chip and electronic equipment
CN111175561A Dual-power voltage detection circuit and system
CN111010042A Frequency modulation circuit, voltage feedback device and power supply equipment
CN111121234A Control method and control device for air conditioner compressor