Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5895508 | Down-flow moving-bed gasifier with catalyst recycle | — | 1999-04-20 |
| 5325797 | Staged fluidized-bed combustion and filter system | Joseph S. Mei | 1994-07-05 |
| 5198002 | Gas stream clean-up filter and method for forming same | Joseph S. Mei, James DeVault | 1993-03-30 |