- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 21/22 - Nitrous oxide (N2O)
Patent holdings for IPC class C01B 21/22
Total number of patents in this class: 34
10-year publication summary
|
2
|
3
|
0
|
1
|
2
|
3
|
1
|
4
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 21136 |
5 |
| Robert Bosch GmbH | 43526 |
2 |
| Showa Denko K.K. | 2104 |
2 |
| Kemira Oyj | 1231 |
2 |
| Linde Aktiengesellschaft | 1437 |
2 |
| The Regents of the University of California | 20478 |
1 |
| Advansix Resins & Chemicals LLC | 303 |
1 |
| Altmerge, LLC | 9 |
1 |
| Casale SA | 623 |
1 |
| Cook Regentec LLC | 22 |
1 |
| Enox Biopharma, Inc | 3 |
1 |
| Geno LLC | 22 |
1 |
| Korea Research Institute of Chemical Technology | 1440 |
1 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4046 |
1 |
| Meggitt (UK) Limited | 5 |
1 |
| SAES Getters S.p.A. | 325 |
1 |
| Thomas Finke | 1 |
1 |
| Universidade de Aveiro | 170 |
1 |
| The University of Sydney | 623 |
1 |
| Ushio Denki Kabushiki Kaisha | 1216 |
1 |
| Other owners | 6 |