Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7247279 | System for removal of pollutants from a gas stream | John E. Pahlman, Charles Hammel, Richard M. Boren, Kevin P. Kronbeck, Joshua Larson +3 more | 2007-07-24 |
| 7033548 | System and process for removal of pollutants from a gas stream | Steve Carlton, Charles Hammel, Richard M. Boren, Kevin P. Kronbeck, Joshua Larson +3 more | 2006-04-25 |
| 6974565 | System and process for removal of pollutants from a gas stream | John E. Pahlman, Charles Hammel, Richard M. Boren, Kevin P. Kronbeck, Joshua Larson +3 more | 2005-12-13 |
| 6610263 | System and process for removal of pollutants from a gas stream | John E. Pahlman, Steve Carlton, Charles Hammel, Richard M. Boren, Kevin P. Kronbeck +3 more | 2003-08-26 |
| 6579507 | System and process for removal of pollutants from a gas stream | John E. Pahlman, Steven C. Carlton, Charles Hammel, Richard M. Boren, Kevin P. Kronbeck +3 more | 2003-06-17 |
| 5169503 | Process for extracting metal values from ores | David R. Baughman, Steven G. Axen | 1992-12-08 |
| 5030036 | Method of isolating contaminated geological formations, soils and aquifers | Steven G. Axen, David R. Baughman | 1991-07-09 |
| 4634187 | Method of in-situ leaching of ores | Steven G. Axen | 1987-01-06 |
| 4386806 | Well repair for in situ leaching | Steven G. Axen, Jerry R. Bergeson | 1983-06-07 |
| 4360234 | In-situ method and apparatus for sparging gas bubbles | Limin Hsueh, Robert A. Hard, Donald H. Davidson | 1982-11-23 |
| 4342484 | Well stimulation for solution mining | Donald H. Davidson | 1982-08-03 |