Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7506733 | Ball-in-ramp brake caliper type parking brake for vehicle | — | 2009-03-24 |
| 7458446 | Parking brake for vehicle using inner air exhaustion type ball-in-ramp brake caliper | Munhwan Byoun | 2008-12-02 |