Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11519376 | On-demand generator starting system | Robert Koenen, Dale C. VanPatten, Jeffrey Berger, Philip Betzhold | 2022-12-06 |
| 11352964 | Cylinder deactivation for a multiple cylinder engine | Robert Koenen, Jacob Zuehl | 2022-06-07 |