CK

Chih-Chen Kao

Overall (All Time): #447,198 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
11618174 Knife allowing rapid and safe replacement and securement of blade, and connecting base thereof 2023-04-04
10035271 Folding knife having locking function 2018-07-31
9751222 Lockback folding knife with safety mechanism 2017-09-05
9533178 Demolition utility tool 2017-01-03
D753456 Multifunction pry bar 2016-04-12
9302399 Folding knife with safe pushing mechanism 2016-04-05
8020302 Folding knife having a poking element 2011-09-20
7886444 Foldable knife having switch element 2011-02-15
7721448 Folding knife with a hollow handle for fastening an item therein 2010-05-25
7600322 Folding knife 2009-10-13
7165329 Folding knife with safety device 2007-01-23