Assignee
HO CHUN-FENG
TW·3 granted patents·1 pending application·12 citations·filing 2011–2013
Technology mixB26B4
Top patents by PatentIndex Score
4 records- 0163US8595942B2Safe utility knifeHO CHUN-FENG·Filed 2011·Granted Dec 3, 2013·6 cites·8 claims
- 0263US8484854B2Blade-switchable utility knifeHO CHUN-FENG·Filed 2011·Granted Jul 16, 2013·6 cites·4 claims
- 0343US9149941B2Blade-switchable utility knifeHO CHUN-FENG·Filed 2013·Granted Oct 6, 2015·0 cites·5 claims
- 0440US2012174412A1Utility knife using tilting status thereof for blade switchingHO CHUN-FENG·Filed 2012·Application pending·0 cites
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