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CHANG CHING-YU

Overview
  • Total Patents
    30
  • GoodIP Patent Rank
    239,629
About

CHANG CHING-YU has a total of 30 patent applications. Its first patent ever was published in 2003. It filed its patents most often in United States and Taiwan. Its main competitors in its focus markets optics, semiconductors and machines are S & AMP STECH CO LTD, CHEN KUANG-JUNG and WINS KK.

Patent filings in countries

World map showing CHANG CHING-YUs patent filings in countries
# Country Total Patents
#1 United States 26
#2 Taiwan 4

Patent filings per year

Chart showing CHANG CHING-YUs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chang Ching-Yu 30
#2 Lin Burn Jeng 2
#3 Lin Chin-Hsiang 2
#4 Chiang Kuo-Ching 2
#5 Liu Chi-Wen 2
#6 Gau Tsai-Sheng 1
#7 Lu Kuei-Liang 1
#8 Chien Tsung-Chih 1
#9 Kuo Hung-Jui 1
#10 Lin Hua-Tai 1

Latest patents

Publication Filing date Title
TW201725335A Magnetic gear wheel transmission mechanism for achieving the effect of rotation without polarity change
US2014017616A1 Apparatus and method for developing process
US2014017615A1 Apparatus and method for resist coating and developing
US2013323641A1 Photosensitive material and method of lithography
US2013260311A1 Photosensitive material and method of photolithography
US2012108040A1 Vaporizing polymer spray deposition system
US2012034558A1 Photolithography material for immersion lithography processes
US2010093176A1 Method of forming a sacrificial layer
US2009011374A1 Method and material for forming high etch resistant double exposure patterns
US2008309891A1 Apparatus and method for immersion lithography
US2007264594A1 Method of inhibiting photoresist pattern collapse
US2008002164A1 Apparatus and method for immersion lithography
US2008063976A1 Photoresist composition and method of forming a resist pattern
US2008076038A1 Surface switchable photoresist
US2007037089A1 Structure and method for improving photoresist pattern adhesion
TW200742239A Self-charge power-saving motor
TW200808009A Portable phone with touch input
TW200732967A Method of updating software and virus detecting for portable communication device
US2005250054A1 Development of photolithographic masks for semiconductors
US2004197710A1 Method for defining ring pattern