Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872969 | Method for valveless control of particle transport | — | 1989-10-10 |
| 4859643 | Regeneration method with reduced catalyst heat exposure | William J. Koves | 1989-08-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872969 | Method for valveless control of particle transport | — | 1989-10-10 |
| 4859643 | Regeneration method with reduced catalyst heat exposure | William J. Koves | 1989-08-22 |