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WELTREND SEMICONDUCTOR INC

Overview
  • Total Patents
    150
  • GoodIP Patent Rank
    28,480
  • Filing trend
    ⇧ 28.0%
About

WELTREND SEMICONDUCTOR INC has a total of 150 patent applications. It increased the IP activity by 28.0%. Its first patent ever was published in 1994. It filed its patents most often in Taiwan, United States and China. Its main competitors in its focus markets electrical machinery and energy, computer technology and audio-visual technology are SILICON SEMICONDUCTOR TECH (HANGZHOU) CO LTD, SOUTHCHIP SEMICONDUCTOR TECH SHANGHAI CO LTD and CHENGDU GUANSHEN TECHNOLOGY CO LTD.

Patent filings in countries

World map showing WELTREND SEMICONDUCTOR INCs patent filings in countries
# Country Total Patents
#1 Taiwan 101
#2 United States 28
#3 China 18
#4 Republic of Korea 2
#5 Japan 1

Patent filings per year

Chart showing WELTREND SEMICONDUCTOR INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ku Chao-Chee 31
#2 Yeh Shui-Chin 12
#3 Kuo Ming-Ying 11
#4 Liang Kuan 10
#5 Chen Ren Yi 10
#6 Chen Hsuan-Ying 10
#7 Chiang Hung-Chih 10
#8 Shen Yi Lun 9
#9 Chen Ren-Yi 9
#10 Chen Chun-Teh 8

Latest patents

Publication Filing date Title
US2021067026A1 Synchronous rectifier controllers and control methods thereof
US2020226402A1 Barcode detection method and barcode detection system for increasing detection efficiency
TWI708462B Control method in use of active-clamp flyback power converter
TWI676936B Barcode detection method and barcode detection system
CN108933529A Power control and power control system
TWI664788B Control circuit and control method
TW201916556A Power converter, power controller, and control methods capable of providing multiple protections
TWI623185B Switching mode power supplies capable of providing different rated voltages, and power controllers thereof
TWI630793B Driving controller capable of adjusting level of gate voltage dynamically
TW201905626A Power control device and method for operating a power control device
TWI628902B Control circuit and control method thereof capable of detecting status of receiving power and releasing voltage of capacitor accordingly
TWI627603B Image Perspective Conversion Method and System Thereof
TW201840116A High voltage charging control method, power controller, and power supply
TWI602154B Panoramic Image Stitching Method and System Thereof
CN108075445A The control gauge device and correlation technique of power supply unit
TW201817110A System for dynamically controlling over voltage protection and voltage converter
TWI545430B Method and tool apparatus for setting over current protection of IC embedded in power supply
TWI545419B Apparatus for automatically calibrating clock of non-crystal oscillator and method thereof
TWI535415B Method for monitoring a heart rate
TWI548981B Over current protection (OCP) chip and OCP circuit of power supply