CD

Christopher E. Dykes

BP British Petroleum: 1 patents #145 of 360Top 45%
Overall (All Time): #3,896,753 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4903774 Annulus shut-off mechanism Peter W. Francis, Hans Paul Hopper 1990-02-27