Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8959954 | Proppants from mineralogical material | Ryan P. Koseski, Barry E. Scheetz | 2015-02-24 |
| 8359886 | Treatment of melt quenched aluminosilicate glass spheres for application as proppants via devitrification processes | Ryan P. Koseski, Barry E. Scheetz | 2013-01-29 |
| 8193128 | Treatment of particles for improved performance as proppants | Barry E. Sheetz, Ryan P. Koseski | 2012-06-05 |
| 7828998 | Material having a controlled microstructure, core-shell macrostructure, and method for its fabrication | Walter G. Luscher, Barry E. Scheetz, Brett A. Wilson | 2010-11-09 |
| 5220824 | High temperature, tube burst test apparatus | David L. Shelleman, Darryl P. Butt, Richard E. Tressler, John J. Mecholsky, Jr. | 1993-06-22 |