Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11408051 | Method and system for metal recovery from arsenical bearing sulfides ores | David LeMieux, Romain Barbaroux, Gabriel Garcia-Curiel, Khalil Nasrallah | 2022-08-09 |
| 11168014 | System and method of fabrication of arsenic glass | Khalil Nasrallah, Romain Barbaroux, David LeMieux | 2021-11-09 |
| 11021411 | Potassium magnesium fertilizer | David LeMieux | 2021-06-01 |
| 9981295 | Method for vitrification of arsenic and antimony | David LeMieux, Khalil Nasrallah, Gabriel Garcia Curiel, Romain Barbaroux | 2018-05-29 |
| 9849438 | Method and composition for sequestration of arsenic | Khalil Nasrallah, Bertrand Dubreuil, David LeMieux | 2017-12-26 |
| 9222147 | Method for selective precipitation of iron, arsenic and antimony | Bertrand Dubreuil, David LeMieux | 2015-12-29 |
| 9206491 | Method and system for gold recovery | Bertrand Dubreuil, David LeMieux | 2015-12-08 |
| 9206492 | Closed loop method for gold and silver extraction by halogens | Bertrand Dubreuil, David LeMieux | 2015-12-08 |
| 9051626 | Method and a system for gold extraction with halogens | Bertrand Dubreuil, David LeMieux | 2015-06-09 |
| 8998790 | Method and composition for sequestration of arsenic | Bertrand Dubreuil, David LeMieux | 2015-04-07 |
| 8409542 | Method and system for the production of potassium sulfate from potassium chloride | David LeMieux, Bertrand Dubreuil | 2013-04-02 |
| 7780941 | Potassium magnesium fertilizer | David LeMieux, Bertrand Dubreuil | 2010-08-24 |
| 7537741 | Gold and silver recovery from polymetallic sulfides by treatment with halogens | — | 2009-05-26 |
| 5876588 | Process for removing and recovering copper, silver and zinc from sulfide ores | Hugues Menard, Regina Zamojska | 1999-03-02 |
| 4886591 | Phosphate bonded composite electrodes | Hugues Menard, Estelle Potvin | 1989-12-12 |
| 4828926 | Aluminum phosphate bonded micas and composite thereof | — | 1989-05-09 |
| 4645784 | Moulded compounding mixtures of adjustable density | — | 1987-02-24 |
| 4639309 | Process for the dehalogenation of polyhalogenated hydrocarbon containing fluids | Germain Belanger | 1987-01-27 |
| 4631183 | Process for the destruction of toxic organic products | Germain Belanger | 1986-12-23 |
| 4612178 | Degradation of polycyclic aromatic hydrocarbons adsorbed over chrysotile asbestos | Hugues Menard | 1986-09-16 |
| 4604140 | Foundry sands derived from serpentine and foundry molds derived therefrom | Jean P. Chevalier-Bultel, Luc Desrosiers | 1986-08-05 |
| 4519811 | Calcined serpentine useful as sandblasting agent | Jean P. Chevalier-Bultel, Normand Labonte | 1985-05-28 |
| 4495223 | Process for phosphating asbestos fibers | Marcel Cossette, Pierre Delvaux | 1985-01-22 |
| 4487624 | Fertilizers pelletized with hydrated sulfates | Claude Ostiguy | 1984-12-11 |
| 4479828 | Light colored and low density mineral filler from magnesium silicate | Hugues Hamelin | 1984-10-30 |