NC

Nai-Wen Chang

📍 Walnut, CA: #9 of 48 inventorsTop 20%
🗺 California: #4,598 of 17,285 inventorsTop 30%
Overall (1997): #100,132 of 185,788Top 55%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5696739 Alcohol and tobacco age identification electronic perpetual calendar — 1997-12-09