CM

Chi-Cheng Ma

OP Olin Hunt Specialty Products: 1 patents #3 of 19Top 20%
📍 Beijing, IL: #1 of 2 inventorsTop 50%
Overall (1989): #126,031 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4869991 Charge director composition for liquid toner formulations Joseph deGraft-Johnson, Richard Wells 1989-09-26