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CHENG WEN-DA

Overview
  • Total Patents
    13
About

CHENG WEN-DA has a total of 13 patent applications. Its first patent ever was published in 2011. It filed its patents most often in United States. Its main competitors in its focus markets semiconductors, measurement and optics are OUCHI TOSHIHIKO, CHENGDU CETC PANDA DISPLAY TECH CO LTD and BEIHAI HUIKE PHOTOELECTRIC TECH CO LTD.

Patent filings in countries

World map showing CHENG WEN-DAs patent filings in countries
# Country Total Patents
#1 United States 13

Patent filings per year

Chart showing CHENG WEN-DAs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Cheng Wen-Da 13

Latest patents

Publication Filing date Title
US2014007372A1 Cleaning device
US2014007811A1 Repairing device for repairing disconnected line
US2014011299A1 Manufacturing apparatus and method of liquid crystal panel
US2013278925A1 Detecting device and method for substrate
US2013248692A1 Detecting apparatus and method for substrate
US2013256187A1 Substrate protecting member
US2013199896A1 Conveyor control apparatus of liquid crystal panel substrates and control method thereof
US2013056734A1 TFT substrate and manufacturing method thereof
US2013071618A1 Thin Film, Pattern Layer, And Manufacturing Method Thereof
US2013062015A1 Wet etching apparatus and method
US2013049785A1 Inspection device for glass substrate
US2012310575A1 Inspection Method for Pixel Array and Inspection Apparatus Thereof