Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11207616 | Housing for filter element; filter element; methods of use and making | Philip Edward Johnson | 2021-12-28 |
| 11167235 | Filter element having inner support and methods | Philip Edward Johnson, John K. Falk, III | 2021-11-09 |
| 11135530 | Filter arrangement with support core and methods | Philip Edward Johnson | 2021-10-05 |