Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11148956 | Systems and methods to treat flue gas desulfurization waste to produce ammonium sulfate and calcium carbonate products | Lucien M. Papouchado, Joseph D. Preston | 2021-10-19 |
| 11066723 | Systems and methods to chemically treat metal-bearing waste streams to recover value-added materials | Lucien M. Papouchado, Joseph D. Preston | 2021-07-20 |
| 8959954 | Proppants from mineralogical material | Ryan P. Koseski, John R. Hellmann | 2015-02-24 |
| 8359886 | Treatment of melt quenched aluminosilicate glass spheres for application as proppants via devitrification processes | Ryan P. Koseski, John R. Hellmann | 2013-01-29 |
| 7828998 | Material having a controlled microstructure, core-shell macrostructure, and method for its fabrication | Walter G. Luscher, John R. Hellmann, Brett A. Wilson | 2010-11-09 |
| 6605146 | Systems and methods for producing and using fine particle materials | Guido Greco, Vincent Pernice | 2003-08-12 |
| 6447595 | Systems and methods for producing and using fine particle materials | Guido Greco, Vincent Pernice | 2002-09-10 |
| 4505753 | Cementitious composite material | Janine M. Rizer, Michael Hahn | 1985-03-19 |
| 4482385 | Cementitious composite material with stainless steel particulate filler | John A. Satkowski, Janine M. Rizer, Carl Gotzmer | 1984-11-13 |