Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11480140 | Self-calibrating engine air filter life monitoring system | Lei Li, Chong Keong Tang | 2022-10-25 |
| 11448152 | Systems and methods for engine air filter system diagnostics | Lei Li, Terry W. Ostan, Chong Keong Tang, Gregory A. Piper | 2022-09-20 |