Donna M. Van Duch

S( Standard Oil Company (Indiana): 1 patents #254 of 576Top 45%

📍 Naperville, IL: #1,846 of 3,051 inventorsTop 65%

🗺 Illinois: #48,934 of 84,256 inventorsTop 60%

Overall (All Time): #4,035,678 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4452910	Chromium expanded smectite clay	P. Donald Hopkins, Bernard L. Meyers	1984-06-05