- All sections
- C - Chemistrymetallurgy
- C10B - Destructive distillation of carbonaceous materials for production of gas, coke, tar, or similar materials
- C10B 21/22 - Methods of heating ovens of the chamber oven type by introducing the heating gas and air at various levels
Patent holdings for IPC class C10B 21/22
Total number of patents in this class: 12
10-year publication summary
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0
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0
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3
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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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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ThyssenKrupp Industrial Solutions AG | 631 |
4 |
| ThyssenKrupp AG | 3393 |
3 |
| ThyssenKrupp Uhde GmbH | 361 |
1 |
| Uhde GmbH | 125 |
1 |
| Vallourec Tubos do Brasil S.A. | 12 |
1 |
| Xixia Dragon into Special Material Co., Ltd | 16 |
1 |
| Closed Joint-Stock Company "ogneuporkoksservis" (cjsc "okos") | 3 |
1 |
| Other owners | 0 |