Issued Patents All Time
Showing 1–25 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11560952 | Variable cylinder wall for seals on plug valve | Ed Sanders | 2023-01-24 |
| 11280414 | Plug valve hard seals on cylinder wall | — | 2022-03-22 |
| 11067177 | Sprung gate valves movable by an actuator | David E. Fletcher, Matthew C. Gilmer | 2021-07-20 |
| 10781828 | Centrifugal pump with noise dampening rubber isolation impeller bushing | David Crowther, Jean-Claude Cadoret | 2020-09-22 |
| 10724550 | Venturi devices with dual Venturi flow paths | David E. Fletcher, James H. Miller, Keith Hampton | 2020-07-28 |
| 10677239 | Solenoid activated vacuum pump for an engine system and system having same | Keith Hampton, David E. Fletcher, James H. Miller | 2020-06-09 |
| 10626888 | Dual Venturi device | David E. Fletcher, Keith Hampton | 2020-04-21 |
| 10571030 | Valve gate within a Venturi gap of a Venturi device for producing vacuum | Keith Hampton, David E. Fletcher, James H. Miller | 2020-02-25 |
| 10525952 | Aspirators for producing vacuum using the venturi effect | David E. Fletcher, Keith Hampton, Matthew C. Gilmer, Andrew Niedert | 2020-01-07 |
| 10513954 | Restrictors using the Venturi effect | David E. Fletcher, James H. Miller, Keith Hampton | 2019-12-24 |
| 10480537 | Low-cost evacuator for an engine having tuned Venturi gaps | David E. Fletcher, James H. Miller, Rex Bravo, Matthew C. Gilmer, Keith Hampton +2 more | 2019-11-19 |
| 10473235 | Bypass check valve and Venturi having same | Andrew Niedert | 2019-11-12 |
| 10443627 | Vacuum producing device having a suction passageway and a discharge passageway entering through the same wall | David E. Fletcher, James H. Miller, 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, James H. Miller, Keith Hampton | 2019-09-24 |
| 10336305 | Aspirators for producing vacuum using the venturi effect | Dave Fletcher, Keith Hampton, Matt Gilmer, Andrew Niedert | 2019-07-02 |
| 10323767 | Sprung gate valves movable by an actuator | David E. Fletcher, Matt Gilmer | 2019-06-18 |
| 10316864 | Devices for producing vacuum using the venturi effect | David E. Fletcher, James H. Miller, Keith Hampton | 2019-06-11 |
| 10273978 | Low-cost evacuator for an engine having tuned Venturi gaps | David E. Fletcher, James H. Miller, Rex Bravo, Matthew C. Gilmer, Keith Hampton +2 more | 2019-04-30 |
| D844550 | Venturi device | David E. Fletcher, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more | 2019-04-02 |
| D843315 | Venturi device | David E. Fletcher, James H. Miller, 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, Rex Bravo, James H. Miller, Matt Gilmer +1 more | 2019-03-05 |
| D840922 | Venturi device | David E. Fletcher, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more | 2019-02-19 |
| D840921 | Venturi device | David E. Fletcher, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more | 2019-02-19 |
| D840920 | Venturi device | David E. Fletcher, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more | 2019-02-19 |
| D840923 | Venturi device | David E. Fletcher, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more | 2019-02-19 |