- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 35
10-year publication summary
|
5
|
2
|
1
|
5
|
6
|
2
|
3
|
2
|
6
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Honeywell International Inc. | 13799 |
3 |
| Kyungdong Navien Co., Ltd. | 566 |
3 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
2 |
| Beckett Gas, Inc. | 50 |
2 |
| ebm-papst Landshut GmbH | 97 |
2 |
| Biomass Controls PBC | 9 |
2 |
| Air Products and Chemicals, Inc. | 1448 |
1 |
| Andritz Oy | 276 |
1 |
| Bertelli & Partners S.r.l. | 28 |
1 |
| Clearstak LLC | 3 |
1 |
| DAS Environmental Expert GmbH | 16 |
1 |
| Fives North American Combustion, Inc. | 45 |
1 |
| Glatt Ingenieurtechnik GmbH | 39 |
1 |
| Haier US Appliance Solutions, Inc. | 3178 |
1 |
| Howden Alphair Ventilating Systems Inc. | 5 |
1 |
| IHI Corporation | 3268 |
1 |
| Miura Co., Ltd. | 287 |
1 |
| Noritz Corporation | 255 |
1 |
| REM Technology Inc. | 39 |
1 |
| Truma Gerätetechnik GmbH & Co. KG | 283 |
1 |
| Other owners | 7 |