Inventor · disambiguated record
Yen-Chao Chung
Also filed as: CHUNG YEN-CHAO
10 granted patents·239 citations·filing 1997–2014
92Inventor score
Top patents by PatentIndex Score
10 records- 0192US8069571B2Spring back safety and film cutterCHUNG YEN-CHAO·Filed 2008·Granted Dec 6, 2011·31 cites·23 claims
- 0292US8006389B2Pocket safety cutterPACIFIC HANDY CUTTER INC·Filed 2007·Granted Aug 30, 2011·32 cites·11 claims
- 0390USD509419SCarpenter knifeFiled 2004·Granted Sep 13, 2005·43 cites·1 claims
- 0486US8819942B2Spring back safety and film cutterCHUNG YEN-CHAO·Filed 2011·Granted Sep 2, 2014·9 cites·23 claims
- 0585US9956695B2Spring back safety and film cutterPACIFIC HANDY CUTTER INC·Filed 2014·Granted May 1, 2018·11 cites·22 claims
- 0683US8443522B2Pocket safety cutterJENNINGS DALE E·Filed 2011·Granted May 21, 2013·10 cites·8 claims
- 0775US9539733B2Pocket safety cutterPACIFIC HANDY CUTTER INC·Filed 2013·Granted Jan 10, 2017·5 cites·14 claims
- 0864US5862596AHand held cutterFiled 1997·Granted Jan 26, 1999·38 cites·4 claims
- 0963US5864952AKnife for woodworkingLUTZ FILE & TOOL COMPANY·Filed 1997·Granted Feb 2, 1999·37 cites·4 claims
- 1050US5987751AUtility knife with a safety lockFiled 1998·Granted Nov 23, 1999·23 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →