Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6627108 | Desulphurizing catalytic composition and its use in removing hydrogen sulphide and sulphur dioxide from a gas | Fabrice Lecomte | 2003-09-30 |
| 6413488 | Post conversion of a gas containing hydrogen sulphide, the elimination of sulphur crystallized by cooling | David E. Smith, David Benayoun | 2002-07-02 |
| 6309609 | Apparatus for treating a gas containing hydrogen sulphide and sulphur dioxide, comprising a step for depleting the recycled solvent in sulphur | Fabrice Lecomte, Jean-Charles Viltard | 2001-10-30 |
| 6210454 | Apparatus for treating a gas containing hydrogen sulphide and sulphur dioxide | Jean-Charles Viltard, Fabrice Lecomte | 2001-04-03 |
| 6165436 | High-pressure sulfur recovery process | Fabrice Lecomte, Jacques Queyrel | 2000-12-26 |
| 6114178 | Device for removing and/or injecting a fluid sample enabling the chemical and/or thermodynamic equilibrium to be preserved | Fabrice Lecomte | 2000-09-05 |
| 5951961 | Process for treating a gas containing hydrogen sulphide and sulphur dioxide, comprising a step for eliminating sulphur by cooling a gaseous effluent | Jean-Charles Viltard, Fabrice Lecomte | 1999-09-14 |
| 5935547 | Process for treating gas containing hydrogen sulfide and sulphur dioxide, comprising a step for depleting the recycled solvent in sulphur | Fabrice Lecomte, Jean-Charles Viltard | 1999-08-10 |
| 5670123 | Process for the extraction of hydrogen sulphide from a gas mixture | Jean-Claude Mileo, Christian Busson, Jean-Charles Viltard, Christophe Berat | 1997-09-23 |
| 5458675 | Process for the treatment of ventilation air containing styrene | Jean Morlec, Christine Travers | 1995-10-17 |
| 5059569 | Process and catalyst for selective reduction of nitrogen oxides | Andre Deschamps, Claude Roux-Guerraz, Christine Travers | 1991-10-22 |
| 4725417 | Process for removing sulfur oxides from a gas by means of an absorption mass regenerable by reaction with hydrogen sulfide | Andre Deschamps, Michel Roussel | 1988-02-16 |
| 4609456 | Process for converting heavy petroleum residues to hydrogen and gaseous distillable hydrocarbons | Andre Deschamps, Sigismond Franckowiak | 1986-09-02 |
| 4421725 | Process for purifying a gas containing hydrogen sulfide and carbon dioxide and apparatus therefor | Sigismond Franckowiak | 1983-12-20 |
| 4310497 | Process for purifying a hydrogen sulfide containing gas | Andre Deschamps, Sigismond Franckowiak, Henri Gruhier | 1982-01-12 |
| 4220634 | Process for converting ammonium imidodisulfate, ammonium sulfamate and ammonium dithionate to sulfur dioxide and ammonia | Andre Deschamps, Sigismond Franckowiak, Henri Gruhier | 1980-09-02 |