- 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 17/02 - Tops for chimneys or ventilating shaftsTerminals for flues
Patent holdings for IPC class F23L 17/02
Total number of patents in this class: 55
10-year publication summary
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3
|
5
|
6
|
2
|
7
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6
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0
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4
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3
|
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
|
|---|---|---|
| Rinnai Corporation | 280 |
4 |
| Dyna-Tech Sales Corporation | 12 |
3 |
| DuraVent, Inc. | 58 |
3 |
| Roof Goose Vent LLC | 20 |
3 |
| Illinois Tool Works Inc. | 11742 |
2 |
| RLH Industries, Inc. | 9 |
2 |
| UChicago Argonne, LLC | 938 |
2 |
| Van-packer Co. | 7 |
2 |
| 7 Euro Copper, Inc. | 9 |
2 |
| IVR Group Pty Ltd | 2 |
2 |
| Caterpillar Inc. | 10151 |
1 |
| Almeva AG | 8 |
1 |
| Aztec Manufacturing, Inc. | 17 |
1 |
| Blue Water Innovations, LLC | 6 |
1 |
| Captive-Aire Systems, Inc. | 87 |
1 |
| CTB, Inc. | 339 |
1 |
| Greenheck Fan Corporation | 96 |
1 |
| Ipex Technologies Inc. | 117 |
1 |
| Lindemann Chimney Supply, Inc. DBA Lindemann Chimney Company | 1 |
1 |
| Noritz Corporation | 288 |
1 |
| Other owners | 20 |