Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12420226 | Fluoroplastic support membrane | Ronald Federico, Joel Patrick Trojnar | 2025-09-23 |
| 11179864 | Ribbed and apertured fluoroplastic support sheet for a filter substrate and method of making same | Joel Patrick Trojnar | 2021-11-23 |
| 10267277 | Fuel filter employing one or more layers of wetlaid synthetic fibers | Dale Ray Estepp | 2019-04-23 |
| 9555353 | Channel depth filtration media | Julie Graber, Gary L. Rickle, Dale Ray Estepp | 2017-01-31 |