- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23N - Regulating or controlling combustion
- F23N 1/04 - Regulating fuel supply conjointly with air supply and with draught
Patent holdings for IPC class F23N 1/04
Total number of patents in this class: 40
10-year publication summary
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1
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5
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6
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2
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3
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2
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6
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4
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2
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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Honeywell International Inc. | 12767 |
3 |
| Kyungdong Navien Co., Ltd. | 649 |
3 |
| Beckett Gas, Inc. | 42 |
2 |
| ebm-papst Landshut GmbH | 87 |
2 |
| Noritz Corporation | 295 |
2 |
| Biomass Controls PBC | 9 |
2 |
| Siemens AG | 23934 |
1 |
| Shell Internationale Research Maatschappij B.V. | 3378 |
1 |
| Air Products and Chemicals, Inc. | 1476 |
1 |
| Andritz Oy | 294 |
1 |
| Bertelli & Partners S.r.l. | 31 |
1 |
| Clearstak LLC | 3 |
1 |
| DAS Environmental Expert GmbH | 29 |
1 |
| Fives North American Combustion, Inc. | 46 |
1 |
| Glatt Ingenieurtechnik GmbH | 38 |
1 |
| Haier US Appliance Solutions, Inc. | 4165 |
1 |
| Howden Alphair Ventilating Systems Inc. | 5 |
1 |
| IHI Corporation | 3552 |
1 |
| IQ Energy Inc. | 13 |
1 |
| Miura Co., Ltd. | 287 |
1 |
| Other owners | 12 |