Inventor
NG WING YIU
CN9 patents
⚠️ This page may combine multiple inventors who share the name “NG WING YIU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WORLD WIDE STATIONERY MFG CO
5 patentsUS7731441B2Jun 8, 2010
Ring binder mechanism
WORLD WIDE STATIONERY MFG CO25 citations92
US7661898B2Feb 16, 2010
Soft close ring binder mechanism with reinforced travel bar
WORLD WIDE STATIONERY MFG CO28 citations92
US8052343B2Nov 8, 2011
Ring binder mechanism
WORLD WIDE STATIONERY MFG CO20 citations89
US7648302B2Jan 19, 2010
Ring binder mechanism
WORLD WIDE STATIONERY MFG CO32 citations89
US7513708B2Apr 7, 2009
Ring binder mechanism having slide connector
WORLD WIDE STATIONERY MFG CO8 citations83