RD

Roger Duckworth

BP British Petroleum: 1 patents #145 of 360Top 45%
📍 Weybridge, GB: #32 of 128 inventorsTop 25%
Overall (All Time): #2,352,476 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4507177 Method of stabilization of particulate material Roy A. Johnson, Timothy E. Lester 1985-03-26
4290875 Sputtering apparatus — 1981-09-22