Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9404463 | Method for performing evaporative emission system diagnostics on engines configured for stop-start operation | Yichao Guo, Kenneth M. Simpson | 2016-08-02 |
| 8813545 | Method for diagnosing component failure in a saddle-type fuel tank assembly | Yichao Guo, Kenneth M. Simpson | 2014-08-26 |
| 8499624 | Method to determine performance characteristic of an engine exhaust system | Kenneth M. Simpson, Mike W. French | 2013-08-06 |