- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F21V - Functional features or details of lighting devices or systems thereof; structural combinations of lighting devices with other articles, not otherwise provided for
- F21V 37/02 - Special adaptation for protection against draughts
Patent holdings for IPC class F21V 37/02
Total number of patents in this class: 9
10-year publication summary
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2
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0
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2
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0
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0
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2
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2
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0
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0
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lamplight Farms Incorporated | 113 |
2 |
| Toyobo Co., Ltd. | 2423 |
2 |
| S. C. Johnson & Son, Inc. | 2835 |
1 |
| Korona SA | 11 |
1 |
| Quarkstar LLC | 218 |
1 |
| Zhejiang Dingxin Arts & Crafts Co., Ltd. | 3 |
1 |
| Dvfg Deutscher Verband Flüssiggas e.V. | 1 |
1 |
| Other owners | 0 |