Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9103394 | Heavy duty brake drum wear indicator | — | 2015-08-11 |
| 8181753 | Brake drum with vent hole and cooling scoop | Paul D. Levering, Timothy M. Yant, John C. Hall, Jeremy L. Zills | 2012-05-22 |
| 7393064 | Wheel hub with improved pilot construction and a method for manufacturing | John C. Hall, Jeremy L. Zills, Sik-Kan Huang | 2008-07-01 |