- 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: 164
10-year publication summary
|
10
|
19
|
21
|
8
|
9
|
11
|
10
|
8
|
3
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eltek S.p.A. | 205 |
11 |
| Lennox Industries Inc. | 1105 |
6 |
| Resideo LLC | 1219 |
6 |
| Midea Group Co., Ltd. | 4979 |
4 |
| Rinnai Corporation | 282 |
4 |
| SIT S.p.A. | 93 |
4 |
| Electrolux Appliances Aktiebolag | 1402 |
3 |
| Haier US Appliance Solutions, Inc. | 4031 |
3 |
| Webasto AG | 149 |
3 |
| Webasto SE | 1188 |
3 |
| Copreci, S.Coop. | 19 |
3 |
| Copeland Comfort Control LP | 276 |
3 |
| Robert Bosch GmbH | 44128 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 33911 |
2 |
| Rockwell Automation Technologies, Inc. | 2801 |
2 |
| Carrier Corporation | 3958 |
2 |
| Azbil Corporation | 473 |
2 |
| Channel Products, Inc. | 36 |
2 |
| Chentronics, LLC | 7 |
2 |
| Green Light Industries, Inc. | 11 |
2 |
| Other owners | 95 |