Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11629625 | Systems and methods of engine exhaust air injection before and after catalytic converters | Chengke Liu, Rafat F. Hattar, Philipp A Seyfried | 2023-04-18 |
JE
John Michael Ellenberger
Overall (All Time): #2,578,680 of 4,157,543Top 65%
1
Patents All Time