DC

David Chang

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Taichung, CA: #145 of 193 inventorsTop 80%
Overall (All Time): #1,032,537 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
D541944 Foot sole massager 2007-05-01
6619475 Golf bag with honeycomb cell structure 2003-09-16
6594921 Shoe with a pivotal counter portion Yui Laio 2003-07-22
D334463 Shoe sole shock absorber 1993-04-06
4918838 Shoe sole having compressible shock absorbers 1990-04-24