Ben Y. CHANG

📍 La Cañada Flintridge, CA: #184 of 465 inventorsTop 40%

🗺 California: #185,134 of 386,348 inventorsTop 50%

Overall (All Time): #2,257,868 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
D391291	Ornamental pen	—	1998-02-24
D376619	Ornamental pen	—	1996-12-17