Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9114362 | Treatment of cold start engine exhaust | Stacey I. Zones, Tecle S. Rufael, Allen W. Burton | 2015-08-25 |
| 8580228 | Treatment of cold start engine exhaust | Stacey I. Zones, Tecle S. Rufael, Allen W. Burton | 2013-11-12 |