DH

Douglas Hillshafer

ST Stepan: 1 patents #1 of 6Top 20%
📍 Western Springs, IL: #5 of 11 inventorsTop 50%
🗺 Illinois: #1,559 of 5,780 inventorsTop 30%
Overall (2003): #234,899 of 273,478Top 90%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6569352 Phthalic anhydride based polyester-ether polyols and urethane prepolymers produced therefrom George Magnus 2003-05-27