Fehr; David L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Fehr; David L..The latest application filed is for "electrically operated displacement pump control system and method".
- Fehr; David L. - Dayton MN
- Fehr; David L. - Champlin MN
| Patent | Date |
|---|---|
| Electrically operated displacement pump assembly Grant 11,434,892 - Hines , et al. September 6, 2 | 2022-09-06 |
| Electrically Operated Displacement Pump Control System And Method App 20220074402 - Hines; Bradley H. ; et al. | 2022-03-10 |
| Electrically operated displacement pump control system and method Grant 11,174,854 - Hines , et al. November 16, 2 | 2021-11-16 |
| Pump changeover algorithm for spray system Grant 11,148,152 - Fehr , et al. October 19, 2 | 2021-10-19 |
| Electrically Operated Displacement Pump Control System And Method App 20210301809 - Hines; Bradley H. ; et al. | 2021-09-30 |
| Electrically Operated Displacement Pump Assembly App 20210301808 - Hines; Bradley H. ; et al. | 2021-09-30 |
| Spray system pump wash sequence Grant 11,045,830 - Fehr , et al. June 29, 2 | 2021-06-29 |
| Spray system pressure differential monitoring Grant 10,688,509 - Fehr , et al. | 2020-06-23 |
| Spray System Pressure Differential Monitoring App 20190224700 - Fehr; David L. ; et al. | 2019-07-25 |
| Spray System Pump Wash Sequence App 20190217323 - Fehr; David L. ; et al. | 2019-07-18 |
| Spray system pump wash sequence Grant 10,300,504 - Fehr , et al. | 2019-05-28 |
| Pump Changeover Algorithm For Spray System App 20190118201 - Fehr; David L. ; et al. | 2019-04-25 |
| Spray system pressure differential monitoring Grant 10,195,622 - Fehr , et al. Fe | 2019-02-05 |
| Pump changeover algorithm for spray system Grant 10,195,621 - Fehr , et al. Fe | 2019-02-05 |
| Spray System Pump Wash Sequence App 20180154388 - Fehr; David L. ; et al. | 2018-06-07 |
| Spray system pump wash sequence Grant 9,901,945 - Fehr , et al. February 27, 2 | 2018-02-27 |
| Spray System Pressure And Ratio Control App 20160167066 - Fehr; David L. ; et al. | 2016-06-16 |
| Spray System Pump Wash Sequence App 20160167076 - Fehr; David L. ; et al. | 2016-06-16 |
| Pump Changeover Algorithm For Spray System App 20160158784 - Fehr; David L. ; et al. | 2016-06-09 |
| Spray System Pressure Differential Monitoring App 20160153441 - Fehr; David L. ; et al. | 2016-06-02 |
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