- All sections
- C - Chemistry; metallurgy
- C01B - Non-metallic elements; compounds thereof
- C01B 21/14 - Hydroxylamine; Salts thereof
Patent holdings for IPC class C01B 21/14
Total number of patents in this class: 31
10-year publication summary
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2
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0
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1
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2
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0
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1
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0
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2
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0
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0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DSM IP Assets B.V. | 5856 |
6 |
| BASF SE | 19740 |
4 |
| BASF AG | 1258 |
3 |
| Cytec Technology Corp. | 328 |
3 |
| Showa Denko K.K. | 2539 |
2 |
| Dana-Farber Cancer Institute, Inc. | 2455 |
2 |
| Sumitomo Chemical Company, Limited | 8808 |
1 |
| Wisconsin Alumni Research Foundation | 3774 |
1 |
| Aerojet Rocketdyne, Inc. | 155 |
1 |
| Cap III B.V. | 53 |
1 |
| China Petrochemical Development Corporation | 29 |
1 |
| Domo Caproleuna GmbH | 5 |
1 |
| EKC Technology, Inc. | 30 |
1 |
| FUJIFILM Electronic Materials U.S.A., Inc. | 270 |
1 |
| Indian Institute of Science | 289 |
1 |
| Anthea Aromatics Private Limited | 11 |
1 |
| Zakrytoe Aksionernoe Obshestvo 'kyibyshevazot' | 1 |
1 |
| Other owners | 0 |