Jean-Luc Duplan
16Patents
10h-index
19Co-inventors
65Inventor score
Filing activity: Feb 15, 1996 → Nov 9, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6447671B1 | Process for converting heavy petroleum fractions, comprising an ebullated bed hydroconversion step and a hydrotreatment step | Chemistry; Metallurgy | 56 | Expired |
| US7374662B2 | Method for jointly producing propylene and petrol from a relatively heavy charge | Chemistry; Metallurgy | 34 | Expired |
| US6277270A | Process for converting heavy petroleum fractions that comprise a fixed-bed hydrotreatment stage, an ebullated-bed conversion stage, and a catalytic cracking stage | Chemistry; Metallurgy | 31 | Expired |
| US6207041A | Process for converting heavy crude oil fractions, comprising an ebullating bed hydroconversion step and a hydrotreatment step | Chemistry; Metallurgy | 28 | Expired |
| US6017441A | Multi-step catalytic process for conversion of a heavy hydrocarbon fraction | Chemistry; Metallurgy | 24 | Expired |
| US6117306A | Catalytic process for conversion of a petroleum residue using a fixed bed hydrodemetallization catalyst | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5980730A | Process for converting a heavy hydrocarbon fraction using an ebullated bed hydrodemetallization catalyst | Chemistry; Metallurgy | 22 | Expired |
| US6171477A | Hydroconversion of vacuum distillates and deasphalted oils in fixed beds and boiling beds | Chemistry; Metallurgy | 19 | Expired |
| US7262332B2 | Process for multistage conversion of a charge comprising olefins with four, five or more carbon atoms, with the aim of producing propylene | Chemistry; Metallurgy | 19 | Expired |
| US6280606A | Process for converting heavy petroleum fractions that comprise a distillation stage, ebullated-bed hydroconversion stages of the vacuum distillate, and a vacuum residue and a catalytic cracking stage | Chemistry; Metallurgy | 11 | Expired |
| US6007703A | Multi-step process for conversion of a petroleum residue | Chemistry; Metallurgy | 7 | Expired |
| US7579513B2 | Method for the direct conversion of a charge containing olefins comprising a minimum of four or five carbon atoms, for producing propylene | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5744681A | Paraffin alkylation process | Chemistry; Metallurgy | 4 | Expired |
| US7597796B2 | Apparatus and process for catalytic cracking of two distinct hydrocarbon feeds | Chemistry; Metallurgy | 3 | Active |
| US5811626A | Paraffin alkylation process | Chemistry; Metallurgy | 3 | Expired |
| US5962750A | Process that involves the optimum etherification of a hydrocarbon fraction that contains olefins that have 6 carbon atoms per molecule | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.