Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9638198 | Shaftless turbocharger | — | 2017-05-02 |
| 7305942 | Electromechanical valve actuator | Ha To Chung, Mark L. Hopper, Shawn Swales | 2007-12-11 |
| 7305943 | Electromagnet assembly for electromechanical valve actuators | — | 2007-12-11 |
| 7152558 | Electromechanical valve actuator assembly | Ha To Chung, Mark L. Hopper, Shawn Swales | 2006-12-26 |
| 7089894 | Electromechanical valve actuator assembly | Mark L. Hopper, Shawn Swales | 2006-08-15 |