Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11441529 | Spark/ignition system for an opposed piston engine | Gregory Powell, James C. Warren | 2022-09-13 |
| 11352930 | Muffler and catalytic converters for combined heating and power systems | James C. Warren, Gregory Powell, Richard Steven Niswander, Mark Helmut Dorner, Noah Alexander Hopson +1 more | 2022-06-07 |