Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6951606 | Auxiliary filtration system for an engine | David J. Allen | 2005-10-04 |
| 6736965 | Auxiliary filtration system and filtering method | David J. Allen | 2004-05-18 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6951606 | Auxiliary filtration system for an engine | David J. Allen | 2005-10-04 |
| 6736965 | Auxiliary filtration system and filtering method | David J. Allen | 2004-05-18 |