Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10336305 | Aspirators for producing vacuum using the venturi effect | Dave Fletcher, Brian M. Graichen, Keith Hampton, Andrew Niedert | 2019-07-02 |
| 10323767 | Sprung gate valves movable by an actuator | Brian M. Graichen, David E. Fletcher | 2019-06-18 |
| 10221867 | Flow control for aspirators producing vacuum using the venturi effect | Keith Hampton, David E. Fletcher, Brian M. Graichen, Rex Bravo, James H. Miller +1 more | 2019-03-05 |
| 9845899 | Sprung gate valves movable by an actuator | Brian M. Graichen, David E. Fletcher | 2017-12-19 |
| 9845773 | Aspirator and ejector system | David E. Fletcher, Brian M. Graichen, Andrew Niedert, Steve Long | 2017-12-19 |
| 9841110 | Sprung gate valves movable by a solenoid actuator | David E. Fletcher, Brian M. Graichen, James H. Miller | 2017-12-12 |
| 9827963 | Aspirators for producing vacuum using the Venturi effect | Dave Fletcher, Brian M. Graichen, Keith Hampton, Andrew Niedert | 2017-11-28 |
| 9822785 | Turbocharger compressor recirculation system | David E. Fletcher, Brian M. Graichen, James H. Miller, Keith Hampton, Rex Bravo +1 more | 2017-11-21 |
| 9671034 | Piston actuator controlling a valve and method for operating the same | Brian M. Graichen, Dave Fletcher, James H. Miller, Keith Hampton | 2017-06-06 |
| 9581258 | Check valve with improved sealing member | David E. Fletcher, James H. Miller, Rex Bravo, Andrew Niedert | 2017-02-28 |
| 9534704 | Noise attenuation in a check valve unit or apparatus for producing vacuum | Keith Hampton, David E. Fletcher, Brian M. Graichen, Rex Bravo, Andrew Niedert | 2017-01-03 |
| 9303548 | Diesel engine fluid coolant system having a solenoid-powered gate valve | Dave Fletcher, Brian M. Graichen, James H. Miller, Jeff Rogala | 2016-04-05 |
| 9145824 | Pneumatic compressor recirculation valve system for minimizing surge under boost during throttle closing | Dave Fletcher, Brian M. Graichen, Keith Hampton, James H. Miller, Steve Long | 2015-09-29 |
| 9133852 | Pneumatic compressor recirculation valve system for minimizing surge under boost during throttle closing | Dave Fletcher, Brian M. Graichen, Keith Hampton, James H. Miller, Steve Long | 2015-09-15 |