Inventor
TSAI PO-CHUAN
TW42 patents
⚠️ This page may combine multiple inventors who share the name “TSAI PO-CHUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TSAI PO-CHUAN
32 patentsUS8104838B2Jan 31, 2012
Armrest assembly that can adjust its leftward and rightward positions
TSAI PO-CHUAN67 citations98
US6948775B2Sep 27, 2005
Office chair armrest
TSAI PO-CHUAN97 citations98
US8499413B1Aug 6, 2013
Castor braking and stopping rotating simultaneously
TSAI PO-CHUAN24 citations92
US7896440B2Mar 1, 2011
Chair armrest having a height adjustable function
TSAI PO-CHUAN36 citations92
USD606345SDec 22, 2009
Chair armrest
TSAI PO-CHUAN28 citations92
US7559609B2Jul 14, 2009
Multifunctional armrest assembly for chair
TSAI PO-CHUAN20 citations92
US7387341B1Jun 17, 2008
Armrest having position adjusting function
TSAI PO-CHUAN54 citations92
US7367628B1May 6, 2008
Armrest that will not produce noise during adjustment
TSAI PO-CHUAN20 citations92
US7011371B1Mar 14, 2006
Armrest assembly having a height adjustable function
TSAI PO-CHUAN34 citations92
USD470748SFeb 25, 2003
Chair caster
TSAI PO-CHUAN40 citations92
US9139044B1Sep 22, 2015
Castor braking and stopping rotating simultaneously
TSAI PO-CHUAN20 citations84
US8522397B1Sep 3, 2013
Castor that is controlled by a wire to brake and stop rotating simultaneously
TSAI PO-CHUAN15 citations84
US8297563B2Oct 30, 2012
Lifting device for chair including force distributing pressing and locking sleeves
TSAI PO-CHUAN13 citations84
USD668944SOct 16, 2012
Chair castor
TSAI PO-CHUAN10 citations84
US8128172B2Mar 6, 2012
Chair armrest assembly having adjustable height
TSAI PO-CHUAN17 citations84
US8128309B2Mar 6, 2012
Lifting device for the backrest of a chair
TSAI PO-CHUAN7 citations84
US8128171B2Mar 6, 2012
Chair armrest assembly having adjustable height
TSAI PO-CHUAN8 citations84
USD653480SFeb 7, 2012
Leg swivel of a swivel chair
TSAI PO-CHUAN6 citations84
US7937805B2May 10, 2011
Castor that is braked solidly and stably without producing vibration
TSAI PO-CHUAN9 citations84
US7930802B2Apr 26, 2011
Castor that is braked solidly and stably without producing vibration
TSAI PO-CHUAN12 citations84
US7725986B2Jun 1, 2010
Castor that is operated smoothly and conveniently
TSAI PO-CHUAN11 citations84
US7661763B2Feb 16, 2010
Chair armrest having a height adjustable function
TSAI PO-CHUAN18 citations84
US7611206B2Nov 3, 2009
Internally pulling type lift device for chair armrest
TSAI PO-CHUAN8 citations84
US7516512B2Apr 14, 2009
Castor having efficiently locking function
TSAI PO-CHUAN14 citations84
USD586161SFeb 10, 2009
Chair armrest
TSAI PO-CHUAN8 citations84
US7448687B2Nov 11, 2008
Internally pulling type lift device for chair armrest
TSAI PO-CHUAN15 citations84
USD524582SJul 11, 2006
Office chair base
TSAI PO-CHUAN16 citations84
US9326607B2May 3, 2016
Rotatable armrest
TSAI PO-CHUAN4 citations73
US8991007B2Mar 31, 2015
Double brake structure for caster wheel
TSAI PO-CHUAN4 citations73
US9211762B1Dec 15, 2015
Castor with two braking functions
TSAI PO-CHUAN3 citations63
US8407854B2Apr 2, 2013
Protective device for castor
TSAI PO-CHUAN3 citations63
USD668943SOct 16, 2012
Chair castor
TSAI PO-CHUAN5 citations63