Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6808694 | NOx reduction methods and apparatuses | Russell G. Tonkyn, M. Lou Balmer, Gary D. Maupin | 2004-10-26 |
| 5931986 | Method and apparatus for confinement of ions in the presence of a neutral gas | Anthony J. Peurrung | 1999-08-03 |
| 5914015 | Method and apparatus for processing exhaust gas with corona discharge | Thomas Michael Orlando, Russell G. Tonkyn | 1999-06-22 |
| 5693941 | Asymmetric ion trap | Michael L. Alexander, James C. Follansbee | 1997-12-02 |