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CHUAN SHIH IND CO LTD

Overview
  • Total Patents
    20
About

CHUAN SHIH IND CO LTD has a total of 20 patent applications. Its first patent ever was published in 2003. It filed its patents most often in Taiwan, United States and Republic of Korea. Its main competitors in its focus markets electrical machinery and energy and machines are MOORE LICHT AG, DUTERTRE GEORGES EDMOND and DEUTSCHE MIKROWELLEN GMBH.

Patent filings in countries

World map showing CHUAN SHIH IND CO LTDs patent filings in countries
# Country Total Patents
#1 Taiwan 10
#2 United States 6
#3 Republic of Korea 3
#4 China 1

Patent filings per year

Chart showing CHUAN SHIH IND CO LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Yeh Chao-Chin 6
#2 Ye Zhao-Qin 6
#3 Yeh Chao Chin 2
#4 Wang Ching-Nan 1
#5 Chen Hong Jong 1
#6 Zhaoqin Ye 1
#7 Chen Hung-Rung 1
#8 Ye Jau-Chin 1
#9 Chen Hong-Rong 1

Latest patents

Publication Filing date Title
TW201014464A Discharge lamp dimmer circuit capable of turning off in low power state
TW201008395A Three-level dimming circuit for discharging lamp
CN101541135A Dimming coupled circuit matched with filaments of aerial discharge fluorescent lamp
US2009236990A1 Electric discharge light-regulation matching...
TW200939889A Gas discharge fluorescent lamp dimming circuit cooperating with filament
TW200930153A Dimming circuit of a discharge lamp
TW200833169A Energy-saving controlling method of light-emitting module
TW200743849A Electrode structure of lamp tube
KR20060113335A Cold cathode fluorescent lamp and method of making same
TW200636792A Manufacturing method and structure for multi-elbow cold-cathode tube
KR20070025746A Method of bending cold cathode fluorescent lamp
TW200706504A Manufacturing method for bending cold cathode tube
US2005179405A1 Dimming circuit for a gas-discharge lamp
KR20050100756A Method of placing quicksilver into miniature lamp
TW200533245A Method of loading mercury into small lamp tube
TW200503047A Spreading drying method of bent-tube light tube fluorescent coating