Issued Patents 2025
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12404793 | Dual function catalyst preheating and EGR system | Jeff Brand, John D Frederick, Kenneth E Hardman | 2025-09-02 |
| 12188404 | Electric turbocharger emissions control | Kenneth E Hardman | 2025-01-07 |