HH

H. F. Hardman

TO The Standard Oil: 1 patents #291 of 601Top 50%
📍 Lyndhurst, OH: #142 of 225 inventorsTop 65%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #4,062,934 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4422980 Acrylic dimerization using supported catalysts R. K. Grasselli, J. D. Burrington, F. A. Pesa 1983-12-27