WL

William P. Ledeen

GR Grove Valve And Regulator: 1 patents #10 of 23Top 45%
📍 Cupertino, CA: #4,039 of 6,989 inventorsTop 60%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,354,762 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4540025 Throttling ball valve Howard L. Ledeen 1985-09-10
4307750 System for precise position control — 1981-12-29