BR

Barry J. Ratzkin

Abbott: 2 patents #2,462 of 5,431Top 50%
AM Amgen: 2 patents #1,289 of 2,867Top 45%
Overall (All Time): #1,300,836 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4935350 Materials and methods for controlling plasmid copy number and stability Avantika C. Patel 1990-06-19
4894331 Partial marker cassette mutagenesis of xylose isomerase Carlos A. Fisher 1990-01-16
4558010 Recombinant deoxyribonucleic acid which codes for plasminogen activator and method of making plasminogen activator protein therefrom Paul P. Hung, Shaw-Guang Lee, Ranajit Roychoudhury 1985-12-10
4370417 Recombinant deoxyribonucleic acid which codes for plasminogen activator Paul P. Hung, Shaw-Guang Lee, Ranajit Roychoudhury, W. Jurgen Schrenk, Michael C. Chen 1983-01-25