Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5166109 | Utilization of slag from coal gasification systems | Seymour B. Alpert, Donald Meisel | 1992-11-24 |
| 5091349 | Utilization of slag from coil gasification systems | Seymour B. Alpert, Donald Meisel | 1992-02-25 |