- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F24D - Domestic- or space-heating systems, e.g. central heating systemsdomestic hot-water supply systemselements or components therefor
- F24D 5/04 - Hot-air central heating systemsExhaust-gas central heating systems operating with discharge of hot air into the space or area to be heated with return of the air to the air heater
Patent holdings for IPC class F24D 5/04
Total number of patents in this class: 83
10-year publication summary
|
7
|
15
|
5
|
8
|
2
|
14
|
4
|
7
|
3
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lennox Industries Inc. | 1116 |
15 |
| Johnson Controls Light Commercial IP GmbH | 306 |
7 |
| MJC, Inc. | 17 |
6 |
| Carrier Corporation | 4354 |
4 |
| Rheem Manufacturing Company | 975 |
4 |
| Tyco Fire & Security GmbH | 3187 |
4 |
| Trane International Inc. | 1180 |
3 |
| LG Electronics Inc. | 72737 |
2 |
| Goodman Manufacturing Company, L.P., Goodman Holding Company, a Texas corporation, its General Partner | 138 |
2 |
| Kyungdong Navien Co., Ltd. | 615 |
2 |
| Pac, LLC | 6 |
2 |
| Rinnai America Corporation | 95 |
2 |
| Commercial Energy Savings Plus, LLC | 4 |
2 |
| Copeland Comfort Control LP | 274 |
2 |
| Mitsubishi Electric Corporation | 45946 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 31201 |
1 |
| Daikin Industries, Ltd. | 9973 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10922 |
1 |
| C.g.m. S.r.l. | 4 |
1 |
| Cinier Radiateurs, SARL | 5 |
1 |
| Other owners | 20 |