- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23N - Regulating or controlling combustion
- F23N 5/20 - Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
Patent holdings for IPC class F23N 5/20
Total number of patents in this class: 161
10-year publication summary
|
10
|
10
|
17
|
20
|
8
|
8
|
11
|
10
|
8
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eltek S.p.A. | 199 |
11 |
| Lennox Industries Inc. | 1131 |
6 |
| Resideo LLC | 1306 |
6 |
| SIT S.p.A. | 104 |
5 |
| Midea Group Co., Ltd. | 4639 |
4 |
| Rinnai Corporation | 254 |
4 |
| Electrolux Appliances Aktiebolag | 1339 |
3 |
| Haier US Appliance Solutions, Inc. | 3744 |
3 |
| Intergas Heating Assets B.V. | 41 |
3 |
| Webasto AG | 253 |
3 |
| Webasto SE | 1174 |
3 |
| Copreci, S.Coop. | 18 |
3 |
| Copeland Comfort Control LP | 280 |
3 |
| Robert Bosch GmbH | 42922 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 32199 |
2 |
| Rockwell Automation Technologies, Inc. | 2727 |
2 |
| Carrier Corporation | 4296 |
2 |
| Azbil Corporation | 470 |
2 |
| Channel Products, Inc. | 35 |
2 |
| Chentronics, LLC | 6 |
2 |
| Other owners | 90 |