Assignee
KAO CHIH-CHEN
TW·11 granted patents·9 pending applications·126 citations·filing 2005–2021
Top patents by PatentIndex Score
20 records- 0191US11618174B2Knife allowing rapid and safe replacement and securement of blade, and connecting base thereofKAO CHIH CHEN·Filed 2021·Granted Apr 4, 2023·3 cites·11 claims
- 0291US9751222B2Lockback folding knife with safety mechanismKAO CHIH-CHEN·Filed 2015·Granted Sep 5, 2017·14 cites·3 claims
- 0389US7165329B2Folding knife with safety deviceKAO CHIH-CHEN·Filed 2005·Granted Jan 23, 2007·36 cites·6 claims
- 0482US9533178B2Demolition utility toolKAO CHIH-CHEN·Filed 2015·Granted Jan 3, 2017·5 cites·3 claims
- 0582US7886444B2Foldable knife having switch elementKAO CHIH-CHEN·Filed 2008·Granted Feb 15, 2011·22 cites·9 claims
- 0675US9302399B2Folding knife with safe pushing mechanismKAO CHIH-CHEN·Filed 2014·Granted Apr 5, 2016·7 cites·13 claims
- 0775US7600322B2Folding knifeKAO CHIH-CHEN·Filed 2007·Granted Oct 13, 2009·12 cites·10 claims
- 0874US8020302B2Folding knife having a poking elementKAO CHIH-CHEN·Filed 2007·Granted Sep 20, 2011·12 cites·2 claims
- 0970US7721448B2Folding knife with a hollow handle for fastening an item thereinKAO CHIH-CHEN·Filed 2008·Granted May 25, 2010·7 cites·5 claims
- 1059US2009217533A1Folding knife with turning device on knife handleKAO CHIH-CHEN·Filed 2008·Application pending·0 cites
- 1158US2009183375A1Folding knife with turning device on knife handleKAO CHIH-CHEN·Filed 2008·Application pending·0 cites
- 1255USD753456SMultifunction pry barKAO CHIH-CHEN·Filed 2014·Granted Apr 12, 2016·8 cites·1 claims
- 1354US2009013537A1Folding knifeKAO CHIH-CHEN·Filed 2007·Application pending·0 cites
- 1453US2008276463A1Folding knifeKAO CHIH-CHEN·Filed 2007·Application pending·0 cites
- 1553US2008276462A1Foldable knifeKAO CHIH-CHEN·Filed 2007·Application pending·0 cites
- 1649US2006288585A1KnifeKAO CHIH-CHEN·Filed 2005·Application pending·0 cites
- 1748US2013067750A1Assisted folding knife with handle having poking elementKAO CHIH-CHEN·Filed 2011·Application pending·0 cites
- 1848US2006168817A1Folding knifeKAO CHIH-CHEN·Filed 2005·Application pending·0 cites
- 1944US10035271B2Folding knife having locking functionKAO CHIH CHEN·Filed 2016·Granted Jul 31, 2018·0 cites·20 claims
- 2042US2017312925A1Folding knife with assisted opening functionKAO CHIH-CHEN·Filed 2016·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →