Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11207639 | Absorbent apparatus for an air dryer purge air cleaner and method of producing the same | Stephen Howe | 2021-12-28 |
| 10933351 | Effluent processing apparatus for a vehicle air brake charging system | Fred W. Hoffman, Stephen Howe, Gregory R. Ashley | 2021-03-02 |