- 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 13/04 - Construction of valves or dampers for controlling air supply or draught pivoted about a single axis but having no other movement with axis perpendicular to face
Patent holdings for IPC class F23L 13/04
Total number of patents in this class: 14
10-year publication summary
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1
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3
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1
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1
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1
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0
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2
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0
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1
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lochinvar, LLC | 115 |
5 |
| Rheem Manufacturing Company | 1040 |
2 |
| Fabricant de Poêles International Inc. | 28 |
1 |
| Fives Stein | 107 |
1 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4154 |
1 |
| K.B.C. Group, Inc | 2 |
1 |
| Ariston Thermo S.p.A. | 20 |
1 |
| Xi'an Thermal Power Research Institute Co., Ltd. | 458 |
1 |
| Magma Products, composed of James S. Mashburn and Jerry P. Mashburn | 2 |
1 |
| Other owners | 0 |