Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11492936 | Crankcase ventilation system with constant restriction in the flow direction and free flow in an opposite direction | Matthew C. Gilmer, David E. Fletcher, Chester E. Duffield, III, David Snow, Joseph Dennis | 2022-11-08 |
| 11015498 | Crankcase ventilation system with a flow control device for on board diagnostics | Scott Martin, Matthew C. Gilmer, David E. Fletcher, Chester E. Duffield, III, David Snow +1 more | 2021-05-25 |