Shien-Fang Chang

📍 New York, NY: #4,780 of 20,192 inventorsTop 25%

🗺 New York: #31,572 of 115,490 inventorsTop 30%

Overall (All Time): #1,280,665 of 4,157,543Top 35%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
6112645	Automatic cooking machine	—	2000-09-05
5067662	Bowl type grinding mill	—	1991-11-26
4682738	Grinding mill	—	1987-07-28
4424069	Dry and wet dual-purpose dust-collecting device	—	1984-01-03