CC

Chihchen Chang

📍 Palatine, IL: #522 of 1,176 inventorsTop 45%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,251,868 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5938204 Amusement system Feng-Tzer Tzeng 1999-08-17
5707063 Amusement system Feng-Tzer Tzeng 1998-01-13