Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873930 | Sulfur removal by sorbent injection in secondary combustion zones | Andrea L. F. Egense | 1989-10-17 |
| 4800825 | Slagging-combustor sulfur removal process and apparatus | — | 1989-01-31 |