- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 21/48 - Methods for the preparation of nitrates in general
Patent holdings for IPC class C01B 21/48
Total number of patents in this class: 16
10-year publication summary
|
3
|
1
|
0
|
1
|
1
|
1
|
0
|
1
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Audi AG | 7602 |
2 |
| Siemens AG | 23948 |
1 |
| Altmerge, LLC | 9 |
1 |
| Bromine Compounds Ltd. | 184 |
1 |
| Dyno Nobel Inc. | 175 |
1 |
| Hindustan Petroleum Corporation Limited | 230 |
1 |
| Johnson Matthey Public Limited Company | 1771 |
1 |
| Korea Institute of Machinery & Materials | 803 |
1 |
| Nitra-Gen LLC | 2 |
1 |
| Oroscience, Inc. | 2 |
1 |
| Petroleo Brasileiro S.A. - Petrobras | 985 |
1 |
| University of Miami | 859 |
1 |
| William Blythe Limited | 21 |
1 |
| Universidade Federal Fluminense - Uff | 8 |
1 |
| Altilium Licensing Limited | 9 |
1 |
| Other owners | 0 |