DH

David Hsieh

UN Unknown: 1 patents #373 of 3,359Top 15%
📍 Changhua City, NJ: #1 of 1 inventorsTop 100%
Overall (2017): #449,443 of 506,227Top 90%
1
Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9591903 Electric umbrella having roller sets — 2017-03-14