Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7247279 | System for removal of pollutants from a gas stream | John E. Pahlman, Ray V. Huff, Charles Hammel, Richard M. Boren, Kevin P. Kronbeck +3 more | 2007-07-24 |
| 7232782 | Regeneration, pretreatment and precipitation of oxides of manganese | Charles Hammel, Richard M. Boren | 2007-06-19 |
| 7041270 | Pretreatment and regeneration of oxides of manganese | Charles Hammel, Richard M. Boren | 2006-05-09 |
| 7033548 | System and process for removal of pollutants from a gas stream | Steve Carlton, Ray V. Huff, Charles Hammel, Richard M. Boren, Kevin P. Kronbeck +3 more | 2006-04-25 |
| 6974565 | System and process for removal of pollutants from a gas stream | John E. Pahlman, Ray V. Huff, Charles Hammel, Richard M. Boren, Kevin P. Kronbeck +3 more | 2005-12-13 |
| 6610263 | System and process for removal of pollutants from a gas stream | John E. Pahlman, Steve Carlton, Ray V. Huff, Charles Hammel, Richard M. Boren +3 more | 2003-08-26 |
| 6579507 | System and process for removal of pollutants from a gas stream | John E. Pahlman, Steven C. Carlton, Ray V. Huff, Charles Hammel, Richard M. Boren +3 more | 2003-06-17 |
| 5196401 | Method of enhancing rock fragmentation and extending drill bit life | William H. Engelmann, Pamela J. Watson, Sanaa E. Khalafalla, John E. Pahlman | 1993-03-23 |
| 4959164 | Rock fragmentation method | William H. Engelmann, Pamela J. Watson, John E. Pahlman, Sanaa E. Khalafalla | 1990-09-25 |