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 51–75 of 77 patents

Patent #TitleCo-InventorsDate
D466153 Ring binder mechanism fastener Weng Io Ng 2002-11-26
6474897 Ring binder having actuating lever with cushion member 2002-11-05
6467984 Ring binder having actuating lever with cushion member 2002-10-22
D461497 Ring binder housing cover 2002-08-13
D461498 Ring binder mechanism fastener Weng Io Ng 2002-08-13
D460109 Housing for a ring binder mechanism 2002-07-09
D457559 Ring binder 2002-05-21
6364558 Ring binder having actuating lever with cushion member 2002-04-02
D453026 Ring binder 2002-01-22
6328497 Ring mechanism for a binder having a plastic top section 2001-12-11
6280114 Ring binder having actuating lever with cushion member 2001-08-28
D442223 Corrugated ring binder housing 2001-05-15
D441789 Partially corrugated ring binder housing 2001-05-08
6168339 Ring binder 2001-01-02
D434071 Ring binder 2000-11-21
D433445 Ring binder 2000-11-07
D430898 Ring binder 2000-09-12
D426571 Ring binder 2000-06-13
6033144 Ring binder mechanism Weng Io Ng 2000-03-07
6007266 Fastener for a ring binder and method of producing a binder assembly Hung Yu Cheng, Weng Io Ng 1999-12-28
5971649 Ring binder mechanism 1999-10-26
5924811 Assembling and disassembling device for ring binders Chun On To, Weng Io Ng, Kung-Hua CHENG, Wen Xu 1999-07-20
5846013 Ring binder 1998-12-08
5842807 Ring binder 1998-12-01
5755513 Ring binder 1998-05-26