Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12392297 | Exhaust gas temperature control | Justin E. Ketterer, Andrew Michael Aerts, Robert S. McAlpine, Kevin M. Luchansky, Pratap S. Murthy | 2025-08-19 |
| 9797279 | Exhaust valve and an engine assembly including the exhaust valve having a pressure relief apparatus | Terry A. Tomas, Robert S. McAlpine | 2017-10-24 |