Alain Quignard
13Patents
5h-index
23Co-inventors
66Inventor score
Filing activity: Dec 30, 1983 → Apr 28, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| 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 |
| US6275775A | Method for determining at least one physico-chemical property of a petroleum fraction | Emerging Cross-Sectional Technologies | 25 | Expired |
| US9163180B2 | Process for the conversion of carbon-based material by a hybrid route combining direct liquefaction and indirect liquefaction in the presence of hydrogen resulting from non-fossil resources | Emerging Cross-Sectional Technologies | 11 | Active |
| US8623102B2 | Process for direct hydorliquefaction of biomass comprising two stages of ebullating bed hydroconversion | Emerging Cross-Sectional Technologies | 7 | Active |
| US8916043B2 | Coal conversion process and products, comprising two direct ebullated bed liquefaction stages and a fixed bed hydrocracking stage | Emerging Cross-Sectional Technologies | 7 | Active |
| US9074139B2 | Process for coal conversion comprising at least one step of liquefaction for the manufacture of aromatics | Chemistry; Metallurgy | 5 | Active |
| US4533462A | Process for the treatment of highly viscous heavy oils at the oil field to effect desalting and transportability thereof | Chemistry; Metallurgy | 4 | Expired |
| US9243194B2 | Process for hydroconversion of heavy carbon-containing feedstocks that integrate a boiling-bed technology and a slurry technology | Emerging Cross-Sectional Technologies | 2 | Active |
| US9896390B2 | Methods of upgrading biooil to transportation grade hydrocarbon fuels | Emerging Cross-Sectional Technologies | 1 | Active |
| US9644154B2 | Optimized method for recycling bio-oils into hydrocarbon fuels | Emerging Cross-Sectional Technologies | 0 | Active |
| US12049591B2 | Bitumens comprising unconventional bitumen bases | Chemistry; Metallurgy | 0 | Active |
| US8877993B2 | Process for ebullated bed hydroconversion of feeds of bio-renewable origin for the production of fuel bases | Emerging Cross-Sectional Technologies | 0 | Active |
| US12371627B2 | Integrated method for processing pyrolysis oils of plastics and/or solid recovered fuels loaded with impurities | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.