Alain Billon
33Patents
13h-index
35Co-inventors
81Inventor score
Filing activity: Apr 21, 1981 → Jul 26, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6783661B1 | Process for producing oils with a high viscosity index | Chemistry; Metallurgy | 62 | Expired |
| US6306287A | Process for hydrotreatment of a heavy hydrocarbon fraction using permutable reactors and introduction of a middle distillate | Chemistry; Metallurgy | 55 | Expired |
| US4498972A | Hydrotreatment process for converting a heavy hydrocarbon fraction containing sulfur impurities and metal impurities to a lighter oil, in at least two steps | Chemistry; Metallurgy | 47 | Expired |
| US4395329A | Catalyst and process for hydrorefining hydrocarbon charges with high contents of metals, resins and/or asphaltenes | Chemistry; Metallurgy | 42 | Expired |
| US5759385A | Process and plant for purifying spent oil | Chemistry; Metallurgy | 38 | Expired |
| US7250107B2 | Flexible method for producing oil bases and distillates from feedstock containing heteroatoms | Chemistry; Metallurgy | 36 | 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 |
| 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 |
| US4510042A | Heavy oil process with hydrovisbreaking, hydrodemetallation and hydrodesulfuration | Chemistry; Metallurgy | 18 | Expired |
| US6884339B2 | Flexible method for producing oil bases with a ZSM-48 zeolite | Chemistry; Metallurgy | 16 | Expired |
| US5306860A | Method of hydroisomerizing paraffins emanating from the Fischer-Tropsch process using catalysts based on H-Y zeolite | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5834522A | Hydroisomerization treatment process for feeds from the fisher-tropsch process | Performing Operations; Transporting | 13 | Expired |
| US4715946A | Process for deasphalting a hydrocarbon charge containing asphaltenes | Chemistry; Metallurgy | 12 | Expired |
| US5345019A | Method of hydrocracking paraffins emanating from the Fischer-Tropsch process using catalysts based on H-Y zeolite | Emerging Cross-Sectional Technologies | 11 | 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 |
| US5879539A | Precious metal and silica-alumina based catalyst and hydroisomerisation treatment process for heavy feeds | Performing Operations; Transporting | 10 | Expired |
| US5525209A | Process for the improved production of middle distillates jointly with the production of high viscosity oils with high viscosity indices from heavy petroleum cuts | Chemistry; Metallurgy | 10 | Expired |
| US4391700A | Process for converting heavy hydrocarbon oils, containing asphaltenes, to lighter fractions | Chemistry; Metallurgy | 9 | Expired |
| US4511458A | Heavy oil process with hydrodemetallation, hydrovisbreaking and hydrodesulfuration | Chemistry; Metallurgy | 8 | Expired |
| US6007703A | Multi-step process for conversion of a petroleum residue | Chemistry; Metallurgy | 7 | Expired |
| US5989410A | Process for improving the pour point of paraffin feedstocks with a catalyst containing an IM-5 zeolite base | Performing Operations; Transporting | 6 | Expired |
| US6036846A | Catalyst based on modified NU-87 zeolite and a process for improving the pour point of feeds containing paraffins | Performing Operations; Transporting | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.