- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24D - Domestic- or space-heating systems, e.g. central heating systemsdomestic hot-water supply systemselements or components therefor
- F24D 5/02 - Hot-air central heating systemsExhaust-gas central heating systems operating with discharge of hot air into the space or area to be heated
Patent holdings for IPC class F24D 5/02
Total number of patents in this class: 121
10-year publication summary
|
8
|
12
|
9
|
4
|
9
|
6
|
7
|
3
|
4
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Trane International Inc. | 1214 |
10 |
| Lennox Industries Inc. | 1084 |
7 |
| Allied Air Enterprises Inc. | 6 |
4 |
| Cambridge Engineering, Inc. | 17 |
4 |
| TPI Corporation | 43 |
4 |
| LG Electronics Inc. | 74968 |
3 |
| Carrier Corporation | 3964 |
3 |
| Captive-Aire Systems, Inc. | 87 |
3 |
| Frost Fighter Inc. | 8 |
3 |
| MacPherson Engineering Inc. | 6 |
3 |
| Axiom Energy Group, LLC | 15 |
3 |
| Sano Development Limited | 55 |
3 |
| Google LLC | 43789 |
2 |
| Paseco Co., Ltd. | 13 |
2 |
| Rheem Manufacturing Company | 991 |
2 |
| Rinnai America Corporation | 96 |
2 |
| Viessmann Werke GmbH & Co. KG | 57 |
2 |
| HPS Home Power Solutions GmbH | 14 |
2 |
| Digital Heat Ltd | 14 |
2 |
| Johnson Controls Light Commercial IP GmbH | 19 |
2 |
| Other owners | 55 |