Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5004069 | Stamp formed muffler with transverse baffle tube | Bennie A. Van Blaircum, Jon W. Harwood | 1991-04-02 |
| 4836330 | Plural chamber stamp formed muffler with single intermediate tube | Jon W. Harwood | 1989-06-06 |
| 4765437 | Stamp formed muffler with multiple low frequency resonating chambers | Jon W. Harwood, Bruno A. Rosa, Bennie A. Van Blaircum | 1988-08-23 |