Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10054366 | Process for operating a blast furnace installation with top gas recycling | Philippe Blostein, Richard Dubettier-Grenier | 2018-08-21 |
| 8702837 | Method of integrating a blast furnace with an air gas separation unit | Richard Dubettier-Grenier | 2014-04-22 |
| 7645319 | Method for renovating a combined blast furnace and air/gas separation unit system | Richard Dubettier-Grenier, Jean-Marc Peyron | 2010-01-12 |
| 5344122 | Tubular rod and device for sampling and analyzing fumes and apparatus including such device | Jean-Claude Vuillermoz, Nicolas Perrin | 1994-09-06 |
| 5067693 | Electric arc oven for treating molten metals with a gas and a process therefor | Etienne Lepoutre, Bruno Hirschberg, Franz-Adolf Petio, Paul Weitzer | 1991-11-26 |