Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5579577 | Improved method for fabricating a muffler | Robert J. Paterick, Paul Smeltzer | 1996-12-03 |
| 5477015 | Vehicular muffler with improved mechanical lock joints | Robert J. Paterick, Paul Smeltzer | 1995-12-19 |