Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7174992 | Muffler with secondary flow path | — | 2007-02-13 |
| 6722123 | Exhaust aftertreatment device, including chemical mixing and acoustic effects | Z. Gerald Liu, Michael T. Zuroski, Cary D. Bremigan, C. Raymond Cheng | 2004-04-20 |
| 5321215 | Vertical exhaust system incorporating a water trap | — | 1994-06-14 |
| 4487289 | Exhaust muffler with protective shield | Frederick H. Printiss, Sr., Richard J. Jasensky | 1984-12-11 |
| 4296832 | Exhaust muffler | — | 1981-10-27 |