F24D 2220/048
Level sensors
Official title: Level sensors, e.g. water level sensors
F24D2220/048 (Level sensors) appears on 21 US grants and 31 published applications in this corpus.
Search patents in F24D- Granted patents
- 21
- Published applications
- 31
- Assignees
- 23
- Inventors
- 71
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 5 |
| 2014 | 2 | 1 |
| 2015 | 1 | 3 |
| 2016 | 2 | 1 |
| 2017 | 1 | 1 |
| 2018 | 2 | 3 |
| 2019 | 4 | 2 |
| 2020 | 1 | 0 |
| 2021 | 2 | 2 |
| 2022 | 1 | 3 |
| 2023 | 0 | 3 |
| 2024 | 2 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Heating system9 Jun 2026US 12,650,234 B2Intellihot, Inc.
- System and method for hydronic distribution with submersible pumps in an unpressurized tank30 Dec 2025US 12,510,255 B2Hunt Utilities Group LLC
- Water heaters with real-time hot water supply determination27 Aug 2024US 12,072,107 B2Rheem Manufacturing Company
- Combined water heater and thermostatic control16 Jul 2024US 12,038,205 B2National Machine Company
- Water heaters with real-time hot water supply determination29 Mar 2022US 11,287,144 B2Rheem Manufacturing Company
- Water heating system and a controller therefor30 Jan 2025US 2025/0035320 A1Mixergy Limited
- Combined water heater and thermostatic control26 Sep 2024US 2024/0318865 A1National Machine Company
- Heating system20 Jun 2024US 2024/0200791 A1Intellihot, Inc.
- Air heating apparatus28 Dec 2023US 2023/0417431 A1Kyungdong Navien Co., Ltd.
- System and method for hydronic distribution with submersible pumps in an unpressurized tank29 Jun 2023US 2023/0204223 A1Hunt Utilities Group LLC
Most cited
By later US patents
- Refrigeration appliance with hot water dispenser10US 8,651,330 B2General Electric Company · 2014
- Water heaters with real-time hot water supply determination5US 11,287,144 B2Rheem Manufacturing Company · 2022
- Solar thermal system5US 9,400,122 B2Kyungdong Navien Co., Ltd. · 2016
- Heat recovery4US 9,869,466 B2Waste Heat Recovery Ltd. · 2018
- Coolant and potable water heater2US 8,783,581 B2International Thermal Investments Ltd. · 2014