- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23L - Supplying air or non-combustible liquids or gases to combustion apparatus in generalvalves or dampers specially adapted for controlling air supply or draught in combustion apparatusinducing draught in combustion apparatustops for chimneys or ventilating shaftsterminals for flues
- F23L 13/02 - Construction of valves or dampers for controlling air supply or draught pivoted about a single axis but having no other movement
Patent holdings for IPC class F23L 13/02
Total number of patents in this class: 40
10-year publication summary
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5
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4
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3
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4
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1
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4
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4
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2
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1
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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
|
|---|---|---|
| Rinnai Corporation | 280 |
4 |
| Field Controls, LLC | 75 |
3 |
| Fire Chief Industries LLC | 6 |
3 |
| Andritz Inc. | 325 |
2 |
| Invensys Controls Australia Pty Ltd. | 5 |
2 |
| Kyungdong Navien Co., Ltd. | 618 |
2 |
| Lennox Industries Inc. | 1086 |
2 |
| Research Products Corporation | 197 |
2 |
| Skoberne GmbH | 8 |
2 |
| Resideo LLC | 1327 |
2 |
| Sharp Corporation | 10468 |
1 |
| American Air Liquide, Inc. | 264 |
1 |
| Beckett Gas, Inc. | 43 |
1 |
| Doosan Lentjes GmbH | 49 |
1 |
| GREE Electric Appliances, Inc. of Zhuhai | 3281 |
1 |
| Gruppo Piazzetta S.P.A. | 25 |
1 |
| Microgen Engine Corporation Holding B.V. | 8 |
1 |
| Invicta Group | 20 |
1 |
| Emas Maki̇na Sanayi̇ Anoni̇m Şi̇rketi̇ | 11 |
1 |
| Firebird Heating Solutions Limited | 5 |
1 |
| Other owners | 6 |