Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8147693 | Multi-layer filter including retainers | Brian Terry, Daniel M. Buckner, Barry M. Verdegan, John W. Clevenger, Jr. | 2012-04-03 |
| 6988625 | Fluid filter with low-cost housing | Chad M. Thomas, Charles W. Hawkins, Kevin C. South, Mark Johnson, Ricky England +1 more | 2006-01-24 |