Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7543597 | Vent valve assembly with lever arrangement | — | 2009-06-09 |
| 7147017 | Fill limit vent valve assembly | — | 2006-12-12 |
| 6918405 | Fill limit vent valve | — | 2005-07-19 |
| 6648016 | Valve assembly for a fuel tank | Markus T. Farrenkopf, Wade Williams, Scott Gaynor, David Eisenbacher, Robert Michael Petroskie | 2003-11-18 |