Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7569737 | Method for excluding salt and other soluble materials from produced water | Tommy J. Phelps, Costas Tsouris, David E. Riestenberg, Scott D. McCallum | 2009-08-04 |
| 6229146 | Position sensitive radioactivity detection for gas and liquid chromatography | Joseph Lewis Cochran, John McCarthy, Tommy J. Phelps | 2001-05-08 |
| 5807697 | Biological tracer method | Janet M. Strong-Gunderson | 1998-09-15 |