Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5855649 | Liquid additives for particulate emissions control | Michael D. Durham, Richard John Schlager, Timothy George Ebner, Robin M. Stewart, Cynthia Jean Bustard +1 more | 1999-01-05 |
| 5833736 | Method for removing undesired particles from gas streams | Michael D. Durham, Richard John Schlager, Timothy George Ebner, Robin M. Stewart, Cynthia Jean Bustard +1 more | 1998-11-10 |
| 5409522 | Mercury removal apparatus and method | Michael D. Durham, Robin M. Stewart, Richard John Schlager | 1995-04-25 |
| 4722774 | Recovery or arsenic and antimony from spent antimony catalyst | — | 1988-02-02 |
| 4657745 | Value recovery from spent alumina-base catalyst | — | 1987-04-14 |
| 4310490 | Apparatus for enriching the iron carbonyl content of a recycle gas stream | Richard P. Ruskan, Humayon Z. Zafar, Duane N. Goens, Charlie W. Kenney | 1982-01-12 |
| 4250157 | Method and apparatus for enriching the iron carbonyl content of a recycle gas stream | Richard P. Ruskin, Humayon Z. Zafar, Duane N. Goens, Charlie W. Kenney | 1981-02-10 |