Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4468868 | Gas-solid counterflow vessel | Mark A. Propster | 1984-09-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4468868 | Gas-solid counterflow vessel | Mark A. Propster | 1984-09-04 |