DD

Daniel Duprez

EU Elf Union: 3 patents #2 of 20Top 10%
EF Elf France: 1 patents #61 of 154Top 40%
Overall (All Time): #1,309,602 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4311614 Catalysts for water dealkylation of aromatic hydrocarbons Michel Grand 1982-01-19
4268702 Catalytic conversion of aromatic fractions in the presence of steam Michel Grand 1981-05-19
4238368 Water dealkylation catalyst of aromatic hydrocarbons Michel Grand 1980-12-09
4233186 Catalysts for water dealkylation of aromatic hydrocarbons Michel Grand 1980-11-11