Hung-Chih Chang

TSMC: 9 patents #2,978 of 12,232Top 25%

VI Victory Industrial: 6 patents #2 of 20Top 10%

NU National Taiwan University: 6 patents #102 of 2,195Top 5%

AR Artilux: 4 patents #19 of 45Top 45%

NT Nanya Technology: 2 patents #292 of 775Top 40%

VI Vivotek: 1 patents #72 of 134Top 55%

IT ITRI: 1 patents #5,197 of 9,619Top 55%

OT Omnivision Technologies: 1 patents #379 of 604Top 65%

Abbott: 1 patents #3,441 of 5,431Top 65%

📍 Dashulong, IL: #3 of 5 inventorsTop 60%

Overall (All Time): #148,749 of 4,157,543Top 4%

Patents All Time

Issued Patents All Time

Showing 26–26 of 26 patents

Patent #	Title	Co-Inventors	Date
6197344	Butorphanol sustained release formulations	Lukchiu Li, Youqin Tian	2001-03-06