Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11067177 | Sprung gate valves movable by an actuator | Brian M. Graichen, David E. Fletcher | 2021-07-20 |
| 11015498 | Crankcase ventilation system with a flow control device for on board diagnostics | Scott Martin, David E. Fletcher, Mitchell Emond, Chester E. Duffield, III, David Snow +1 more | 2021-05-25 |