Inventor · disambiguated record
Chang Chuan Lee
Also filed as: LEE CHANG C · LEE CHANG CHUAN
15 granted patents·7 pending applications·278 citations·filing 1992–2013
94Inventor score
Top patents by PatentIndex Score
22 records- 0190US7124664B1Ratchet wrenchLEE CHANG CHUAN·Filed 2006·Granted Oct 24, 2006·26 cites·10 claims
- 0289US7246544B1Rotary wrenchLEE CHANG CHUAN·Filed 2006·Granted Jul 24, 2007·25 cites·6 claims
- 0389US7051625B1Detent structure of a torque wrench for adjusting operation angle thereofLEE CHANG CHUAN·Filed 2005·Granted May 30, 2006·22 cites·5 claims
- 0486US7150212B2Torque screwdriverLEE CHANG CHUAN·Filed 2006·Granted Dec 19, 2006·19 cites·5 claims
- 0585US6886429B1Ratchet wrench having a pivotal headFiled 2004·Granted May 3, 2005·30 cites·5 claims
- 0682US7275467B1Tracing mechanism of torque adjustable wrenchesLEE CHANG CHUAN·Filed 2006·Granted Oct 2, 2007·15 cites·8 claims
- 0773US5193419AWrench with telescopic handleLEE CHANG CHUAN·Filed 1992·Granted Mar 16, 1993·32 cites·3 claims
- 0871US9149918B2L-shaped torsional wrenchLEE CHANG-CHUAN·Filed 2013·Granted Oct 6, 2015·4 cites·8 claims
- 0971US5568751AReversible ratchet wrench and reversible ratchet mechanism thereofFiled 1995·Granted Oct 29, 1996·35 cites·4 claims
- 1069US5372053AHammerFiled 1993·Granted Dec 13, 1994·32 cites·11 claims
- 1168US6978705B1Torque wrenchLEE CHANG CHUAN·Filed 2004·Granted Dec 27, 2005·14 cites·3 claims
- 1265US7047842B1Pawl mechanism of a ratchet wrenchLEE CHANG CHUAN·Filed 2004·Granted May 23, 2006·12 cites·5 claims
- 1356US2007256525A1Rotary wrench structureLEE CHANG CHUAN·Filed 2007·Application pending·0 cites
- 1455USD347983SSocket for a socket wrenchLEE CHANG-CHUAN·Filed 1992·Granted Jun 21, 1994·8 cites·1 claims
- 1549US2007289414A1Ratchet mechanism for hand toolsLEE CHANG CHUAN·Filed 2007·Application pending·0 cites
- 1649US2007245865A1Tracing mechanism of torque adjustable wrenchesLEE CHANG CHUAN·Filed 2007·Application pending·0 cites
- 1744US2007101832A1Ratchet mechanism for hand toolsLEE CHANG C·Filed 2006·Application pending·0 cites
- 1843US2006201282A1Torque adjustable socket assemblyLEE CHANG C·Filed 2006·Application pending·0 cites
- 1943US2006213334A1Ratchet mechanism for ratchet toolsLEE CHANG C·Filed 2006·Application pending·0 cites
- 2042US2006236819A1Pawl structure of a ratchet wrenchLEE CHANG C·Filed 2005·Application pending·0 cites
- 2141US7318574B2Tool kitLEE CHANG CHUAN·Filed 2004·Granted Jan 15, 2008·4 cites·2 claims
- 2229USD345493SRatchet wrench handleLEE CHANG-CHUAN·Filed 1992·Granted Mar 29, 1994·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →