TC

Tung-Hsien Chen

DP De Poan Pneumatic: 1 patents #1 of 1Top 100%
UN Unknown: 1 patents #273 of 2,925Top 10%
📍 Keelung, TW: #3 of 36 inventorsTop 9%
Overall (2003): #38,065 of 273,478Top 15%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6598775 Hammer head assembly for power hammer — 2003-07-29
6585142 Hammer head assembly used in an air nailing gun for driving U-nails — 2003-07-01