Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9739215 | Intrusive EGR monitor for a hybrid vehicle | Douglas Raymond Martin, Freeman Carter Gates | 2017-08-22 |
| 9296390 | Hybrid vehicle exhaust diagnostics | Douglas Raymond Martin, Matthew David Smith | 2016-03-29 |
| 9026287 | Method and system for engine control | Douglas Raymond Martin, Matthew David Smith | 2015-05-05 |
| 8136391 | Non-intrusive EGR monitor for a hybrid electric vehicle | Douglas Raymond Martin | 2012-03-20 |