Issued Patents All Time
Showing 51–69 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D684217 | Scooter | — | 2013-06-11 |
| 8414000 | One piece flexible skateboard | Robert Chen | 2013-04-09 |
| 8414029 | Marking device for scooter and removable marking cartridge | — | 2013-04-09 |
| 8356840 | Marking device for a personal mobility vehicle | Steve Sramek, Bradley James Williams | 2013-01-22 |
| 8215676 | Marking device for scooter and removable marking cartridge | — | 2012-07-10 |
| 8047320 | Adjustable power unit mounting attachment for vehicle | — | 2011-11-01 |
| 7891680 | Flexboard for scooter rear end | Robert Chen | 2011-02-22 |
| 7775534 | Flexible skateboard with grinding tube | Robert Chen | 2010-08-17 |
| 7766351 | One piece flexible skateboard | Robert Chen | 2010-08-03 |
| D606610 | Spark cartridge | Steve Sramek | 2009-12-22 |
| 7600768 | One piece flexible skateboard | Robert Chen | 2009-10-13 |
| D575352 | Three-wheel scooter | Steve Sramek | 2008-08-19 |
| D572332 | Flexible board | Steve Sramek | 2008-07-01 |
| D569448 | Three-wheel scooter | Steve Sramek | 2008-05-20 |
| 7338056 | One piece flexible skateboard | Robert Chen | 2008-03-04 |
| D512467 | Go kart | Steve Sramek | 2005-12-06 |
| D500829 | Jump ramp | — | 2005-01-11 |
| 6827673 | Collapsible pogo stick | Robert Chen, Pinchieh Feng | 2004-12-07 |
| D484073 | Tricycle | Gregor Heinemann, Robert Chen, Erich Chang | 2003-12-23 |