- 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: 39
10-year publication summary
|
7
|
2
|
4
|
2
|
4
|
3
|
5
|
3
|
6
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hope Medical Enterprises, Inc. | 53 |
12 |
| Deepak Nitrite Limited | 23 |
7 |
| Noxsano Inc. | 14 |
3 |
| Board of Supervisors of Louisiana State University and Agricultural and Mechanical College | 809 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 29973 |
1 |
| Contemporary Amperex Technology Co., Limited | 5525 |
1 |
| ConvaTec Limited | 307 |
1 |
| Cook Regentec LLC | 22 |
1 |
| Hope Medical Enterprise, Inc. d.b.a. Hope Pharmaceuticals | 1 |
1 |
| Iowa State University Research Foundation, Inc. | 749 |
1 |
| Kantian Sciences Corporation | 3 |
1 |
| Nalux Co., Ltd. | 175 |
1 |
| Refined Technologies, Inc. | 53 |
1 |
| Rentech, Inc. | 42 |
1 |
| Tohoku University | 2700 |
1 |
| The Trustees of Indiana University | 700 |
1 |
| University of Miami | 835 |
1 |
| The University of Queensland | 656 |
1 |
| Plasmapp Co., Ltd. | 63 |
1 |
| Other owners | 0 |