Inventor · disambiguated record
Youn Chyuan Liao
Also filed as: LIAO YOUN CHYUAN
7 granted patents·303 citations·filing 1999–2006
89Inventor score
Files withLIAO YOUN CHYUAN4
Top patents by PatentIndex Score
7 records- 0195US7287450B1Tool device having rotatable driving shankLIAO YOUN CHYUAN·Filed 2006·Granted Oct 30, 2007·60 cites·15 claims
- 0294US7039975B1Tool having detachable handle membersLIAO YOUN CHYUAN·Filed 2005·Granted May 9, 2006·49 cites·14 claims
- 0391US6089133AScrewdriverFiled 1999·Granted Jul 18, 2000·99 cites·3 claims
- 0488USD446651STool boxFiled 2001·Granted Aug 21, 2001·42 cites·1 claims
- 0581US7174814B2Tool handle having tool receiving structureLIAO YOUN CHYUAN·Filed 2005·Granted Feb 13, 2007·14 cites·8 claims
- 0679US7311186B2Ratchet tool having increased driving torqueLIAO YOUN CHYUAN·Filed 2005·Granted Dec 25, 2007·15 cites·6 claims
- 0773US6520053B2Rotatable tool handle having a solid locking structureFiled 2001·Granted Feb 18, 2003·24 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →