Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9562456 | Exhaust injection muffler | Mark E. Turpin, Gary A. Salmonson, Brian G. Haupt, Shawn John Kipka, Kurt Butz +2 more | 2017-02-07 |
| 8839611 | Exhaust injection muffler | Mark E. Turpin, Gary A. Salmonson, Brian G. Haupt, Shawn John Kipka, Kurt Butz +2 more | 2014-09-23 |
| 8769940 | Marine exhaust catalyst | Mark E. Turpin, Gary A. Salmonson, Brian G. Haupt, Shawn John Kipka, Kurt Butz +1 more | 2014-07-08 |
| 8607554 | Exhaust cooler | Mark E. Turpin, Gary A. Salmonson, Brian G. Haupt, Shawn John Kipka, Kurt Butz +2 more | 2013-12-17 |
| 4222509 | Adhesive tape dispenser | — | 1980-09-16 |