Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7426924 | Engine and ventilation system | Michael P. Withrow, Seth Evan Slaughter, Christopher Michael Dolan | 2008-09-23 |
| 7060184 | Quick-drain valve member for use with filter apparatus | L. Steven Cline, Henry L. Neufeld | 2006-06-13 |