TL

Tsun-Chi Liao

HC Hwa Shin Musical Instrument Co.: 30 patents #1 of 2Top 50%
Overall (All Time): #16,994 of 4,157,543Top 1%
92
Patents All Time

Issued Patents All Time

Showing 26–50 of 92 patents

Patent #TitleCo-InventorsDate
8974138 Fast disassembly fastening apparatus for musical instruments 2015-03-10
8859871 Drumstick weight adjustment structure 2014-10-14
8629339 Portable practice instrument 2014-01-14
8624097 Cajon hitting assembly 2014-01-07
8481835 Foot pedal folding structure 2013-07-09
8269088 Cymbal support structure 2012-09-18
7956268 Foot pedal striking adjustment apparatus 2011-06-07
7906718 Drum and drum stand coupler 2011-03-15
7897858 Drum rim clamping apparatus for a foot pedal hammer seat 2011-03-01
7820899 Cymbal adjustment structure 2010-10-26
7781659 Adjustable modular drum 2010-08-24
7348480 Pedal operated cymbal stand for holding cymbals with adjustable elevation angle and position 2008-03-25
7297853 Angle adjusting cymbal base assembly 2007-11-20
7234781 Anchoring fixture for stools capable of adjusting elevation 2007-06-26
6977332 Anchoring structure for telescopic tubes of drum sets 2005-12-20
6872023 Structure of steplessly adjusting angle for a cymbal 2005-03-29
6858788 Adjustable cymbal assembly 2005-02-22
6822149 Drum pulsatile 2004-11-23
6815598 Anchor structure for accessories of a musical instrument stand 2004-11-09
6811346 Rod assembly 2004-11-02
D490838 Drum lug 2004-06-01
6740799 Central bar structure for hi-hat cymbals 2004-05-25
D489751 Drum lug 2004-05-11
6687934 Seat cushion structure 2004-02-10
6528714 Hi-hat cymbal stand 2003-03-04