Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8346424 | Method of monitoring in-use performance ratios of onboard diagnostic systems for plug-in hybrid electric vehicles | Andrew M. Zettel, John F. Van Gilder | 2013-01-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8346424 | Method of monitoring in-use performance ratios of onboard diagnostic systems for plug-in hybrid electric vehicles | Andrew M. Zettel, John F. Van Gilder | 2013-01-01 |