Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
CG

Colin W. Greengrass

Pfizer: 5 patents #1,037 of 5,153Top 25%
Sandwich, IL: #19 of 98 inventorsTop 20%
Illinois: #17,877 of 84,256 inventorsTop 25%
Overall (All Time): #1,052,633 of 4,157,543Top 30%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5767139 Indoles which have steroid 5-.alpha. reductase inhibitory activity Graham Nigel Maw, Julian Blagg, Paul Finn 1998-06-16
4684641 7-hydroxyaminocephalosporin antibiotics David W. T. Hoople, Thomas T. Howarth 1987-08-04
4684642 7-Hydroxyaminocephalosporin antibiotics David W. T. Hoople, Thomas T. Howarth 1987-08-04
4243666 4-Amino-2-piperidino-quinazolines Simon F. Campbell, John C. Danilewicz, Rhona M. Plews 1981-01-06
4237138 Antihypertensive 4-amino-2-[4-(substituted-alkoxy)piperidino)]quinazolines Simon F. Campbell, John C. Danilewicz 1980-12-02