CK

Chien-Chuan Kao

UN Unknown: 3 patents #7,366 of 83,584Top 9%
Overall (All Time): #966,285 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
D927222 Hexagonal mat — 2021-08-10
D821168 Wrench — 2018-06-26
9931737 Ratchet wrench with efficient driver changing function Chao Liu 2018-04-03
9789593 Socket ratchet wrench — 2017-10-17
8397605 Ratchet wrench — 2013-03-19