Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12359669 | Adaptive learning system for improving sump pump control | Nathan L. Tofte, John Donovan, Richard Jan Tjaden | 2025-07-15 |
| 12264680 | Determining and utilizing a desired frequency for a mechanical shaker for a sump pump system | Nathan L. Tofte, John Donovan, Richard Jan Tjaden | 2025-04-01 |
| 12241471 | Detecting and utilizing a rise rate for sump pump system control | Nathan L. Tofte, John Donovan, Richard Jan Tjaden | 2025-03-04 |
| 12234827 | Detecting and utilizing water vibrations in sump pump system control | Nathan L. Tofte, John Donovan, Richard Jan Tjaden | 2025-02-25 |
| 12234826 | Systems and methods for manipulating control of sump pumps to extend lifespans of sump pumps | Nathan L. Tofte, John Donovan, Richard Jan Tjaden | 2025-02-25 |
| 12196211 | Sump pump smart home integration | Nathan L. Tofte, John Donovan, Richard Jan Tjaden | 2025-01-14 |
| 12055146 | Adaptive learning system for improving sump pump control | Nathan L. Tofte, John Donovan, Richard Jan Tjaden | 2024-08-06 |
| 11988214 | Determining and utilizing a desired frequency for a mechanical shaker for a sump pump system | Nathan L. Tofte, John Donovan, Richard Jan Tjaden | 2024-05-21 |
| 11859620 | Detecting and utilizing water vibrations in sump pump system control | Nathan L. Tofte, John Donovan, Richard Jan Tjaden | 2024-01-02 |
| 11788535 | Systems and methods for manipulating control of sump pumps to extend lifespans of sump pumps | Nathan L. Tofte, John Donovan, Richard Jan Tjaden | 2023-10-17 |
| 11773856 | Detecting and utilizing a rise rate for sump pump system control | Nathan L. Tofte, John Donovan, Richard Jan Tjaden | 2023-10-03 |
| 11761447 | Adaptive learning system for improving sump pump control | Nathan L. Tofte, John Donovan, Richard Jan Tjaden | 2023-09-19 |
| 11635080 | Determining and utilizing a desired frequency for a mechanical shaker for a sump pump system | Nathan L. Tofte, John Donovan, Richard Jan Tjaden | 2023-04-25 |