- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 21/50 - Nitrous acidSalts thereof
Patent holdings for IPC class C01B 21/50
Total number of patents in this class: 45
10-year publication summary
|
2
|
4
|
2
|
4
|
3
|
5
|
3
|
6
|
3
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hope Medical Enterprises, Inc. | 56 |
14 |
| Deepak Nitrite Limited | 30 |
9 |
| Board of Supervisors of Louisiana State University and Agricultural and Mechanical College | 825 |
2 |
| Noxsano Inc. | 12 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 34265 |
1 |
| Wisconsin Alumni Research Foundation | 3900 |
1 |
| ApS Japan Co., Ltd. | 26 |
1 |
| Contemporary Amperex Technology Co., Limited | 10216 |
1 |
| ConvaTec Limited | 387 |
1 |
| Cook Regentec LLC | 22 |
1 |
| Hope Medical Enterprise, Inc. d.b.a. Hope Pharmaceuticals | 1 |
1 |
| Iowa State University Research Foundation, Inc. | 834 |
1 |
| Kantian Sciences Corporation | 2 |
1 |
| Nalux Co., Ltd. | 181 |
1 |
| Refined Technologies, Inc. | 55 |
1 |
| Rentech, Inc. | 37 |
1 |
| Tohoku University | 3007 |
1 |
| The Trustees of Indiana University | 835 |
1 |
| University of Miami | 855 |
1 |
| The University of Queensland | 653 |
1 |
| Other owners | 2 |