GS

George T. Sperl

PP Phillips Petroleum: 3 patents #13 of 170Top 8%
📍 Gurnee, IL: #2 of 15 inventorsTop 15%
🗺 Illinois: #133 of 3,813 inventorsTop 4%
Overall (1989): #10,610 of 140,708Top 8%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4879231 Transformation of yeasts of the genus pichia David W. Stroman, James M. Cregg, Michael M. Harpold 1989-11-07
4818700 Pichia pastoris argininosuccinate lyase gene and uses thereof James M. Cregg 1989-04-04
4795708 Novel backteria and single cell protein production therewith John A. Cruze 1989-01-03