Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4976934 | Nested, recirculating-fiber filter | Robert E. Maringer, Richard Razgaitis | 1990-12-11 |
| 4704084 | NO.sub.X reduction in multisolid fluidized bed combustors | Ke-Tien Liu | 1987-11-03 |
| 4589927 | Liquid multisolid fluidized bed processing | Billy R. Allen, William J. Huffman | 1986-05-20 |