- All sections
- C - Chemistrymetallurgy
- C10K - Purifying or modifying the chemical composition of combustible gases containing carbon monoxide
- C10K 1/22 - Apparatus, e.g. dry box purifiers
Patent holdings for IPC class C10K 1/22
Total number of patents in this class: 5
10-year publication summary
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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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1
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1
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0
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0
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2
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4122 |
1 |
| Simple Approach Systems, Inc. | 5 |
1 |
| China National Coal Group Corp. | 3 |
1 |
| Actinon Pte. Ltd. | 4 |
1 |
| Wisd City Environment Protection Engineering Co., Ltd | 8 |
1 |
| Other owners | 0 |