DC

Dianlin Chang

UN Unknown: 2 patents #12,644 of 83,584Top 20%
📍 Shenyang, CN: #129 of 496 inventorsTop 30%
Overall (All Time): #2,271,683 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5647817 Two directional multi-speed shifting gear of middle axle 1997-07-15
5141476 Two-way-driven 3-speed free wheel 1992-08-25