Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6537453 | Acid-neutralizing filter | Allan Roush | 2003-03-25 |
| 6517475 | Centrifugal filter for removing soot from engine oil | Gene W. Brown, Steven J. Merritt, Farrell F. Calcaterra, David F. May, Louis A. Krempel | 2003-02-11 |