- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 21/20 - Nitrogen oxidesOxyacids of nitrogenSalts thereof
Patent holdings for IPC class C01B 21/20
Total number of patents in this class: 150
10-year publication summary
|
7
|
11
|
13
|
15
|
8
|
16
|
11
|
22
|
19
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Third Pole, Inc. | 54 |
12 |
| The General Hospital Corporation | 4870 |
8 |
| N2 Applied AS | 11 |
7 |
| NitricGen, Inc. | 9 |
7 |
| Korea Institute of Fusion Energy | 91 |
7 |
| Nitrocapt AB | 19 |
7 |
| Vero Biotech Inc. | 77 |
5 |
| Universiteit Antwerpen | 411 |
3 |
| BASF SE | 21303 |
2 |
| Toyota Motor Corporation | 35772 |
2 |
| Chevron U.S.A. Inc. | 4140 |
2 |
| W. L. Gore & Associates, Inc. | 2720 |
2 |
| Altmerge, LLC | 9 |
2 |
| C-Tech Innovation Limited | 19 |
2 |
| Ilika Technologies Ltd | 69 |
2 |
| Korea Institute of Machinery & Materials | 793 |
2 |
| N/C Quest, Inc. | 22 |
2 |
| ThyssenKrupp Uhde GmbH | 379 |
2 |
| Tohoku University | 2980 |
2 |
| The University of Liverpool | 307 |
2 |
| Other owners | 70 |