Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12151852 | Paper cup of dual structure and method for manufacturing same | Bong Yoon Woo | 2024-11-26 |
| 4500111 | Suspension assembly for a wheel and brake | — | 1985-02-19 |
| 4386682 | Piston retraction and wear compensation for low-drag disc brakes | Irving R. Ritsema | 1983-06-07 |
| 4344512 | Duo servo drum brake and parking mechanism therefor | — | 1982-08-17 |
| 4336867 | Drum brake having duo mode | — | 1982-06-29 |
| 4334599 | Disc brake and mounting pin assembly therefor | Irving R. Ritsema | 1982-06-15 |
| 4266640 | Wheel cylinder | — | 1981-05-12 |