Inventor
TUAN MU HSIEN CHUNG
TW24 patents
⚠️ This page may combine multiple inventors who share the name “TUAN MU HSIEN CHUNG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EASCO HAND TOOLS INC
8 patentsUS7340983B2Mar 11, 2008
Spanner with prevention of disengagement of fasteners
EASCO HAND TOOLS INC19 citations92
US7231851B2Jun 19, 2007
Reversible ratcheting tool
EASCO HAND TOOLS INC30 citations92
US6868759B2Mar 22, 2005
Reversible ratcheting tool
EASCO HAND TOOLS INC44 citations92
US7137320B2Nov 21, 2006
Ratcheting tool driver
EASCO HAND TOOLS INC12 citations84
US7673542B2Mar 9, 2010
Spanner with prevention of disengagement of fasteners
EASCO HAND TOOLS INC4 citations63
US7028590B2Apr 18, 2006
Retractable open end wrench
EASCO HAND TOOLS INC6 citations63
US6907803B2Jun 21, 2005
Single-direction operation type ratchet wrench structure
EASCO HAND TOOLS INC5 citations63
US8375831B2Feb 19, 2013
Tool locking mechanism
EASCO HAND TOOLS INC3 citations60
LEA WAY HAND TOOL CORP
6 patentsUSD559054SJan 8, 2008
Reversible ratcheting wrench
LEA WAY HAND TOOL CORP23 citations92
USD558006SDec 25, 2007
Gear of a wrench
LEA WAY HAND TOOL CORP28 citations92
USD551924SOct 2, 2007
Gear of a wrench
LEA WAY HAND TOOL CORP10 citations84
US7210578B2May 1, 2007
Display unit for storing tool assembly
LEA WAY HAND TOOL CORP19 citations81
USD551042SSep 18, 2007
Two-way wrench
LEA WAY HAND TOOL CORP7 citations73
USD555995SNov 27, 2007
Joint wrench
LEA WAY HAND TOOL CORP5 citations62
HAND TOOL DESIGN CORP
4 patentsUS6230591B1May 15, 2001
Reversible ratcheting tool with improved gear wheel/pawl engagement
HAND TOOL DESIGN CORP99 citations98
US6629477B2Oct 7, 2003
Reversible ratchet wrench with high torsion
HAND TOOL DESIGN CORP61 citations96
US6134990AOct 24, 2000
Ratcheting tool with improved gear wheel/pawl engagement
HAND TOOL DESIGN CORP75 citations96
US6701768B2Mar 9, 2004
Process for making ratchet wheels
HAND TOOL DESIGN CORP16 citations84