Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5893956 | Method of making a filter element | Marney Dunman Perry, Jr., Stephen A. von Phul, Nolan Glover, Floyd Roberts | 1999-04-13 |
| 5827430 | Coreless and spirally wound non-woven filter element | Marney Dunman Perry, Jr., Stephen A. von Phul, Nolan Glover, Floyd Roberts | 1998-10-27 |