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CHEN TAI-TZUO

Overview
  • Total Patents
    13
About

CHEN TAI-TZUO has a total of 13 patent applications. Its first patent ever was published in 2002. It filed its patents most often in Taiwan and Japan. Its main competitors in its focus markets machine tools, machines and furniture and games are CHEN TERENCE, SU CHENG WEI and HU HOU-FEI.

Patent filings in countries

World map showing CHEN TAI-TZUOs patent filings in countries
# Country Total Patents
#1 Taiwan 12
#2 Japan 1

Patent filings per year

Chart showing CHEN TAI-TZUOs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Chen Tai-Tzuo 13

Latest patents

Publication Filing date Title
JP2008044090A Rachet wrench
TW200628266A Wrench assembly
TW200621434A A ratchet wrench with rotatable driving head
TW200700191A Wedging device for fixed positioning for hand tool
TW200618963A Tool-holding apparatus adapted to pinch spanners with various sizes
TW200611786A Locking type dual-joint wrench
TW200600277A Selective one-way wrench preventing rocking of direction switch in racing
TW200514655A Selective driven one-way wrench
TW589241B Improved structure for ratchet wrench
TW585806B Locking-type double joints tool
TW200426003A Tool rack having two degrees of hardness
TW200422144A Specification-identifiable joint for wrench
TWI220008B Foldable spanner rack