CT

Chun Yuen To

WC World Wide Stationery Mfg. Co.: 60 patents #1 of 21Top 5%
WL World Wide Daily Holdings Company Limited: 16 patents #1 of 1Top 100%
CT Cooper Technologies: 1 patents #474 of 859Top 60%
Overall (All Time): #24,440 of 4,157,543Top 1%
77
Patents All Time

Issued Patents All Time

Showing 26–50 of 77 patents

Patent #TitleCo-InventorsDate
8899865 Ring binder mechanism having retaining system on ring members 2014-12-02
8851783 Ring binder mechanism having snap-in ring members 2014-10-07
8801317 Ring binder mechanism Jn Biao Pi 2014-08-12
8573876 Soft close ring binder mechanism with mating ring tips Hung Yu Cheng, Ho Ping Cheng 2013-11-05
8147160 Ring binder mechanism with polymeric housing and actuator Ho Ping Cheng 2012-04-03
8047737 Ring binder mechanism Jn Biao Pi, Ze Yu Zhang 2011-11-01
7950866 Ring binder mechanism with polymeric housing Jin Biao Pi, Ming Hua Huang 2011-05-31
7819602 Ring binder mechanism Ho Ping Cheng, Jin Biao Pi 2010-10-26
RE41852 Rectilinear binder ring 2010-10-26
D622316 Dual lever ring mechanism with rectilinear binder rings 2010-08-24
7726897 Ring binder mechanism Chun H. Lin 2010-06-01
D616934 Single lever ring mechanism having rectilinear binder rings 2010-06-01
D616023 Push button ring mechanism having rectilinear binder rings 2010-05-18
7637682 Ring binder 2009-12-29
D598494 Binding ring 2009-08-18
D585935 Rectilinear binder ring 2009-02-03
D582477 Binding ring 2008-12-09
7360962 Ring binder mechanism 2008-04-22
7073968 Fastening binder ring mechanisms to binders Weng Io Ng 2006-07-11
RE38731 Ring binder 2005-05-03
6758621 Ring binder mechanism 2004-07-06
D473897 Ring binder housing cover 2003-04-29
6536980 Ring binder having actuating lever with cushion member 2003-03-25
6533486 Ring binder having actuating lever with cushion member 2003-03-18
D468351 Ring binder housing cover 2003-01-07