Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10830197 | Two-position gate and sprung gate valves having a full-flow open position and a restricted-flow open position | David E. Fletcher, Matthew C. Gilmer | 2020-11-10 |
| 10724550 | Venturi devices with dual Venturi flow paths | David E. Fletcher, Brian M. Graichen, Keith Hampton | 2020-07-28 |
| 10677239 | Solenoid activated vacuum pump for an engine system and system having same | Keith Hampton, David E. Fletcher, Brian M. Graichen | 2020-06-09 |
| 10571030 | Valve gate within a Venturi gap of a Venturi device for producing vacuum | Keith Hampton, David E. Fletcher, Brian M. Graichen | 2020-02-25 |