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ALFASEMI INC

Overview
  • Total Patents
    11
  • GoodIP Patent Rank
    148,729
  • Filing trend
    0.0%
About

ALFASEMI INC has a total of 11 patent applications. It increased the IP activity by 0.0%. Its first patent ever was published in 2015. It filed its patents most often in United States, EPO (European Patent Office) and Taiwan. Its main competitors in its focus markets electrical machinery and energy, environmental technology and measurement are RADERMACHER HARALD JOSEF GÜNTHER, TRIDONICATCO SCHWEIZ AG and BAG ELECTRONICS GMBH.

Patent filings in countries

World map showing ALFASEMI INCs patent filings in countries
# Country Total Patents
#1 United States 7
#2 EPO (European Patent Office) 3
#3 Taiwan 1

Patent filings per year

Chart showing ALFASEMI INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chang Yu-Cheng 10
#2 Shih Te-Lung 9
#3 Lin Kuo-Chao 5
#4 Hsieh Chang-Hung 1

Latest patents

Publication Filing date Title
US10404055B1 Power line resistance sensing device
EP3544382A1 Power control device
US10182479B1 Voltage regulation circuit for LED tube
US9848472B1 LED device with energy compensation
US9674910B1 Filament simulation circuit for LED tube
US9717128B1 High-safety LED tube
US9433052B1 LED control system suitable for different types of power sources
US9615421B1 LED control circuit