Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5925243 | Inline cartridge filter | Gary D. Clark, Johnny H. Wong, Michael David Adams | 1999-07-20 |
| 5733443 | Inside to outside flow filters | Willie L. Stamey, Jr., Mark A. Roll | 1998-03-31 |
| 5606989 | Self-venting valve arrangement | Mark A. Roll, Willie L. Stamey, Jr. | 1997-03-04 |
| 5447627 | Dual-flow filter assembly with a center-tube sealing grommet | Timothy L. Memmer | 1995-09-05 |