- All sections
- C - Chemistry; metallurgy
- C01B - Non-metallic elements; compounds thereof
- C01B 21/22 - Nitrous oxide (N2O)
Patent holdings for IPC class C01B 21/22
Total number of patents in this class: 35
10-year publication summary
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0
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1
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2
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3
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0
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1
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2
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3
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1
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2
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 19740 |
5 |
| Robert Bosch GmbH | 40953 |
2 |
| Showa Denko K.K. | 2539 |
2 |
| Kemira Oyj | 1167 |
2 |
| Linde Aktiengesellschaft | 1600 |
2 |
| Conopco, Inc. | 4644 |
1 |
| The Regents of the University of California | 18943 |
1 |
| BASF AG | 1258 |
1 |
| Advansix Resins & Chemicals LLC | 278 |
1 |
| Altmerge, LLC | 9 |
1 |
| Casale SA | 572 |
1 |
| Cook Regentec LLC | 22 |
1 |
| Enox Biopharma, Inc | 3 |
1 |
| Geno LLC | 23 |
1 |
| Korea Research Institute of Chemical Technology | 1266 |
1 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
1 |
| Meggitt (UK) Limited | 7 |
1 |
| Mitsubishi Gas Chemical Company, Inc. | 3188 |
1 |
| SAES Getters S.p.A. | 338 |
1 |
| Sumitomo Seika Chemicals Co., Ltd. | 1028 |
1 |
| Other owners | 7 |