- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23N - Regulating or controlling combustion
- F23N 3/06 - Regulating air supply or draught by conjoint operation of two or more valves or dampers
Patent holdings for IPC class F23N 3/06
Total number of patents in this class: 27
10-year publication summary
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2
|
0
|
1
|
5
|
3
|
2
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2
|
2
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0
|
2
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kyungdong Navien Co., Ltd. | 649 |
4 |
| Mitsubishi Heavy Industries, Ltd. | 9271 |
2 |
| Coprecitec, S.L. | 32 |
2 |
| Honeywell International Inc. | 12761 |
1 |
| Air Products and Chemicals, Inc. | 1475 |
1 |
| Ammann Italy S.p.A. | 5 |
1 |
| Babcock-Hitachi Kabushiki Kaisha | 90 |
1 |
| Bertelli & Partners S.r.l. | 31 |
1 |
| Ceské Vysoké Ucení Technické V Praze | 79 |
1 |
| C.I.B. Unigas S.p.A. | 23 |
1 |
| Hertwich Engineering GmbH | 11 |
1 |
| IHI Corporation | 3554 |
1 |
| IHS Innovation ApS | 1 |
1 |
| Pacific Energy Fireplace Products Ltd. | 14 |
1 |
| Rheem Manufacturing Company | 1038 |
1 |
| Hwam A/S | 3 |
1 |
| ATech elektronika d.o.o. | 8 |
1 |
| DP Cleantech (Hong Kong) Limited | 4 |
1 |
| Xi'an Thermal Power Research Institute Co., Ltd. | 458 |
1 |
| A.J. Wells & Sons Limited | 3 |
1 |
| Other owners | 2 |