Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7819096 | Cylinder valve operating system for reciprocating internal combustion engine | Yihua S. Barber, Mark Zagata | 2010-10-26 |
| 7578270 | Heat activated valve system | William Riley, Mark Zagata, Michael Schrader | 2009-08-25 |