- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F21W - Indexing scheme associated with subclasses , , and , relating to uses or applications of lighting devices or systems
- F21W 131/409 - Lighting for industrial, commercial, recreational or military use for furnaces or kilns
Patent holdings for IPC class F21W 131/409
Total number of patents in this class: 3
10-year publication summary
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0
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0
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1
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0
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0
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0
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0
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0
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0
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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
|
|---|---|---|
| Illinois Tool Works Inc. | 11735 |
1 |
| SCHOTT AG | 1733 |
1 |
| SCHOTT Corporation | 68 |
1 |
| Other owners | 0 |