Issued Patents All Time
Showing 51–61 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D771196 | Drifting kart | — | 2016-11-08 |
| 9387900 | Scooter with rear swivel wheel | — | 2016-07-12 |
| 9321504 | Braking device for a personal mobility vehicle | Robert Hadley | 2016-04-26 |
| D748738 | Electric scooter | Robert Hadley | 2016-02-02 |
| 9180927 | Powered personal mobility vehicle with rotating wheels | Robert Hadley, William Griggs | 2015-11-10 |
| 8820460 | Powered personal mobility vehicle with rotating wheels | Robert Hadley, William Griggs | 2014-09-02 |
| 8813892 | Braking device for a personal mobility vehicle | Robert Hadley | 2014-08-26 |
| D693414 | Electric scooter | Robert Hadley | 2013-11-12 |
| 6827673 | Collapsible pogo stick | Pinchieh Feng, Robert Hadley | 2004-12-07 |
| D484073 | Tricycle | Gregor Heinemann, Robert Hadley, Erich Chang | 2003-12-23 |
| 6660975 | Method for producing flat wafer chucks | Albert Wang | 2003-12-09 |