Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D589411 | Wheelchair member | Torr Brown, David Cheng Cheng, Jae Won SIM | 2009-03-31 |
| 4802514 | Overflow spillage preventer for fuel tanks in boats | — | 1989-02-07 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D589411 | Wheelchair member | Torr Brown, David Cheng Cheng, Jae Won SIM | 2009-03-31 |
| 4802514 | Overflow spillage preventer for fuel tanks in boats | — | 1989-02-07 |