Marcel Ropars
12Patents
3h-index
25Co-inventors
60Inventor score
Filing activity: Feb 6, 1975 → Sep 26, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3994862A | Thermosetting polymers and prepolymers and a process for making them by polycondensation of a pyridine having at least three methyl substituants | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6284358A | Textile preforms sheathed in a boron nitride coating, composites incorporating them and their preparation | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7666679B2 | Method and device for analyzing the CO2 contained in a drilling fluid | Physics | 4 | Active |
| US9453245B2 | Method for producing ethanol and solvents from lignocellulosic biomass including the recirculation of a butyl wine obtained by fermenting pentoses | Emerging Cross-Sectional Technologies | 2 | Active |
| US4642264A | Thermoset polymers and prepolymers with rapid curing, obtained by polycondensation of pyridine derivatives and aromatic dialdehydes and adding of phenolic compounds | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4525573A | Thermoset polymers and prepolymers obtained by polycondensation of alkyl pyridine with hydroxyl aromatic monoaldehydes | Chemistry; Metallurgy | 2 | Expired |
| US9758798B2 | Process for the production of ethanol and solvents from lignocellulosic biomass with recycling of an ethanolic liquor obtained from the fermentation of pentoses | Emerging Cross-Sectional Technologies | 0 | Active |
| US8980595B2 | In situ production of furfural in a controlled amount in an alcohol production unit from a lignocellulosic biomass | Emerging Cross-Sectional Technologies | 0 | Active |
| US9994874B2 | Method for producing alcohols and/or solvents from a biomass, including recirculating an internal flow including alcohols and/or solvents upstream from or within the pretreatment | Emerging Cross-Sectional Technologies | 0 | Active |
| US10253380B2 | Mutant strains of the genus Clostridium beijerinckii | Emerging Cross-Sectional Technologies | 0 | Active |
| US11453853B2 | Method for cleaning a solid support of a fermentation reactor comprising a contaminated polyurethane foam | Emerging Cross-Sectional Technologies | 0 | Active |
| US9994873B2 | Process for the production of alcohols and/or solvents from lignocellulosic biomass with acid recycle of solid residues | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.