Andre Deschamps
31Patents
10h-index
23Co-inventors
75Inventor score
Filing activity: Jan 23, 1973 → Nov 18, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4088736A | Process for purifying a gas containing hydrogen sulfide and contact masses usable therefor | Chemistry; Metallurgy | 91 | Expired |
| US5071452A | Gas separation membrane | Chemistry; Metallurgy | 83 | Expired |
| US4609456A | Process for converting heavy petroleum residues to hydrogen and gaseous distillable hydrocarbons | Chemistry; Metallurgy | 74 | Expired |
| US4925459A | Process for separation of the constituents of a mixture in the gas phase using a composite membrane | Chemistry; Metallurgy | 70 | Expired |
| US4197277A | Process for oxidizing sulfur and sulfur compounds | Chemistry; Metallurgy | 24 | Expired |
| US4251495A | Process for purifying a hydrogen sulfide containing gas | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4310497A | Process for purifying a hydrogen sulfide containing gas | Chemistry; Metallurgy | 20 | Expired |
| US4163043A | Process for removing H.sub.2 S and CO.sub.2 from gases and regenerating the adsorbing solution | Chemistry; Metallurgy | 18 | Expired |
| US4220634A | Process for converting ammonium imidodisulfate, ammonium sulfamate and ammonium dithionate to sulfur dioxide and ammonia | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4048293A | Process for purifying a sulfur dioxide containing gas | Chemistry; Metallurgy | 13 | Expired |
| US5602291A | Process for isomerizing C.sub.5 /C.sub.6 normal paraffins with recycling normal paraffins and methyl-pentanes | Chemistry; Metallurgy | 10 | Expired |
| US4725417A | Process for removing sulfur oxides from a gas by means of an absorption mass regenerable by reaction with hydrogen sulfide | Chemistry; Metallurgy | 10 | Expired |
| US4277458A | Process for oxidizing sulfur and sulfur compounds | Performing Operations; Transporting | 9 | Expired |
| US5059569A | Process and catalyst for selective reduction of nitrogen oxides | Emerging Cross-Sectional Technologies | 8 | Expired |
| US3956440A | Production of fine grained ferrite bodies | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4855117A | Process for removing sulfur oxides from a gas by means of an absorption mass regenerable by reaction with elemental sulfur | Performing Operations; Transporting | 6 | Expired |
| US4405442A | Process for converting heavy oils or petroleum residues to gaseous and distillable hydrocarbons | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4505880A | Process for the hydrodesulfurization and deoxygenation of a gas containing oxygen and organic sulfur compounds | Chemistry; Metallurgy | 6 | Expired |
| US4460553A | Process for the hydrodesulfurization of natural gas containing organic sulfur compounds and oxygen | Chemistry; Metallurgy | 5 | Expired |
| US3966891A | Process for manufacturing sulfur from a solution of sodium sulfite | Chemistry; Metallurgy | 4 | Expired |
| US4081515A | Catalytic conversion of an ammonium sulfate to sulfur dioxide and ammonia | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4164543A | Process for regenerating brines containing sodium sulfites and sulfates | Performing Operations; Transporting | 3 | Expired |
| US3962410A | Process for purifying industrial gases containing hydrogen sulfide with sulfur production | Performing Operations; Transporting | 3 | Expired |
| US4519895A | Process for converting a carbonaceous material to lower paraffinic hydrocarbons and monocyclic aromatic hydrocarbons | Chemistry; Metallurgy | 2 | Expired |
| US4148760A | Catalyst for oxidizing sulfur or sulfur compounds | Performing Operations; Transporting | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.