RC

Roger Chaumont

EF Elf France: 1 patents #61 of 154Top 40%
📍 Condrieu, FR: #8 of 12 inventorsTop 70%
Overall (All Time): #3,978,861 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4681680 Device for the selective and continuous recovery of hydrocarbons present in the form of a sheet at the surface of an aqueous medium Luc Delons 1987-07-21