Issued Patents 2019
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10519984 | Noise attenuation in a Venturi device and/or check valves | David E. Fletcher, Rex Bravo, Andrew Niedert, Matthew C. Gilmer, Keith Hampton +1 more | 2019-12-31 |
| 10513954 | Restrictors using the Venturi effect | David E. Fletcher, Brian M. Graichen, Keith Hampton | 2019-12-24 |
| 10480537 | Low-cost evacuator for an engine having tuned Venturi gaps | David E. Fletcher, Brian M. Graichen, Rex Bravo, Matthew C. Gilmer, Keith Hampton +2 more | 2019-11-19 |
| 10456929 | Negative pressure actuated soft bending actuator | Nathaniel Wicks | 2019-10-29 |
| 10443627 | Vacuum producing device having a suction passageway and a discharge passageway entering through the same wall | David E. Fletcher, Brian M. Graichen, Keith Hampton | 2019-10-15 |
| 10422351 | Devices for producing vacuum using the venturi effect having a plurality of subpassageways and motive exits in the motive section | David E. Fletcher, Brian M. Graichen, Keith Hampton | 2019-09-24 |
| 10316864 | Devices for producing vacuum using the venturi effect | David E. Fletcher, Brian M. Graichen, Keith Hampton | 2019-06-11 |
| 10273978 | Low-cost evacuator for an engine having tuned Venturi gaps | David E. Fletcher, Brian M. Graichen, Rex Bravo, Matthew C. Gilmer, Keith Hampton +2 more | 2019-04-30 |
| D844550 | Venturi device | David E. Fletcher, Brian M. Graichen, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more | 2019-04-02 |
| D843315 | Venturi device | David E. Fletcher, Brian M. Graichen, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more | 2019-03-19 |
| 10221867 | Flow control for aspirators producing vacuum using the venturi effect | Keith Hampton, David E. Fletcher, Brian M. Graichen, Rex Bravo, Matt Gilmer +1 more | 2019-03-05 |
| D840920 | Venturi device | David E. Fletcher, Brian M. Graichen, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more | 2019-02-19 |
| D840923 | Venturi device | David E. Fletcher, Brian M. Graichen, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more | 2019-02-19 |
| D840922 | Venturi device | David E. Fletcher, Brian M. Graichen, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more | 2019-02-19 |
| D840921 | Venturi device | David E. Fletcher, Brian M. Graichen, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more | 2019-02-19 |
| 10190455 | Venturi devices resistant to ice formation for producing vacuum from crankcase gases | Keith Hampton, David E. Fletcher, Brian M. Graichen, Andrew Niedert | 2019-01-29 |
| 10190549 | Check valves and venturi devices having the same | David E. Fletcher, Brian M. Graichen, Matthew C. Gilmer, Andrew Niedert, Keith Hampton | 2019-01-29 |
| 10167971 | Aspirated relief valve for a turbocharging system | David E. Fletcher, Brian M. Graichen, Keith Hampton, Matthew C. Gilmer | 2019-01-01 |