John K.P. O'Brien

📍 South Salem, NY: #2 of 4 inventorsTop 50%

🗺 New York: #1,258 of 5,342 inventorsTop 25%

Overall (1989): #93,720 of 140,708Top 70%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4881811	Remote color measurement device	—	1989-11-21