Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5022431 | Exhaust gas recirculation valve assembly | Thaddeus J. Grey, Raymond Eduardo Kirton, George A. English, Karen M. Meyer, Charles J. Barker | 1991-06-11 |
| 4998707 | Exhaust gas recirculation valve assembly | Karen M. Meyer, Robert J. Conklin, Charles J. Barker | 1991-03-12 |