- All sections
- C - Chemistry; metallurgy
- C02F - Treatment of water, waste water, sewage, or sludge
- C02F 101/38 - Organic compounds containing nitrogen
Patent holdings for IPC class C02F 101/38
Total number of patents in this class: 288
10-year publication summary
|
20
|
22
|
21
|
32
|
29
|
33
|
28
|
24
|
23
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Covestro Deutschland AG | 2429 |
11 |
| Nanjing University | 646 |
7 |
| BASF SE | 19740 |
6 |
| Safe Foods Corporation | 82 |
6 |
| Soochow University | 1605 |
5 |
| BL Technologies, Inc. | 831 |
4 |
| Ecolab USA Inc. | 5190 |
4 |
| Evonik Operations GmbH | 3879 |
4 |
| Dow Global Technologies LLC | 10147 |
3 |
| Northwestern University | 3112 |
3 |
| BiOWiSH Technologies, Inc. | 25 |
3 |
| Chinese Research Academy of Environmental Sciences | 113 |
3 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
3 |
| Guangdong University of Technology | 466 |
3 |
| OxyTec LLC | 10 |
3 |
| South China University of Technology | 1581 |
3 |
| Xiamen University of Technology | 50 |
3 |
| Solventum Intellectual Properties Company | 2681 |
3 |
| Atlantium Technologies Ltd. | 40 |
2 |
| Clear River Enviro, LLC | 3 |
2 |
| Other owners | 207 |