- All sections
- C - Chemistry; metallurgy
- C01B - Non-metallic elements; compounds thereof
- C01B 21/20 - Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
Patent holdings for IPC class C01B 21/20
Total number of patents in this class: 118
10-year publication summary
|
3
|
4
|
7
|
11
|
13
|
14
|
8
|
16
|
10
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Third Pole, Inc. | 62 |
9 |
| The General Hospital Corporation | 4517 |
8 |
| N2 Applied AS | 12 |
6 |
| NitricGen, Inc. | 8 |
6 |
| Chevron U.S.A. Inc. | 3774 |
5 |
| Korea Institute of Fusion Energy | 58 |
4 |
| Nitrocapt AB | 10 |
3 |
| Vero Biotech Inc. | 75 |
3 |
| BASF SE | 19740 |
2 |
| Toyota Motor Corporation | 28582 |
2 |
| Altmerge, LLC | 9 |
2 |
| Ascend Performance Materials Operations LLC | 260 |
2 |
| Board of Supervisors of Louisiana State University and Agricultural and Mechanical College | 786 |
2 |
| C-Tech Innovation Limited | 23 |
2 |
| Ilika Technologies Ltd | 64 |
2 |
| N/C Quest, Inc. | 24 |
2 |
| Tohoku University | 2526 |
2 |
| Uhde GmbH | 172 |
2 |
| Universiteit Antwerpen | 326 |
2 |
| 3m Innovative Properties Company | 18406 |
1 |
| Other owners | 51 |