WC

Wei-Hwang Chang

📍 Lisle, IL: #249 of 567 inventorsTop 45%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,239,140 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6077194 Body twist exercising toy with sound and light producing means — 2000-06-20
5449913 Apparatus for producing attenuation scan — 1995-09-12