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

John D. Hardstone

Pfizer: 3 patents #1,612 of 5,153Top 35%
Deal, GB: #2 of 13 inventorsTop 20%
Overall (All Time): #1,673,695 of 4,157,543Top 45%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4758568 Quinoline therapeutic agents Simon F. Campbell 1988-07-19
4686228 Quinoline therapeutic agents Simon F. Campbell 1987-08-11
4656174 Quinoline therapeutic agents Simon F. Campbell 1987-04-07