- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 41/40 - SeparationPurificationStabilisationUse of additives by change of physical state, e.g. by crystallisation
Patent holdings for IPC class C07C 41/40
Total number of patents in this class: 63
10-year publication summary
|
5
|
3
|
2
|
3
|
9
|
6
|
11
|
1
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kaneka Corporation | 4500 |
13 |
| Taoka Chemical Co., Ltd. | 57 |
9 |
| Honshu Chemical Industry Co., Ltd. | 159 |
5 |
| Kellanova | 522 |
3 |
| Pioneer Energy, Inc. | 20 |
2 |
| Biomedical Analysis Center, Academy Of Military Medical Sciences | 5 |
2 |
| DKS Co. Ltd. | 178 |
2 |
| Linde GmbH | 1246 |
2 |
| AstraZeneca AB | 2934 |
1 |
| Sumitomo Chemical Company, Limited | 8986 |
1 |
| NGK Insulators, Ltd. | 4853 |
1 |
| Daikin Industries, Ltd. | 9920 |
1 |
| Dow Global Technologies LLC | 10247 |
1 |
| Council of Scientific & Industrial Research | 1413 |
1 |
| DIC Corporation | 3720 |
1 |
| Katholieke Universiteit Leuven | 1148 |
1 |
| Kellogg Company | 105 |
1 |
| Korea Research Institute of Chemical Technology | 1359 |
1 |
| Lanxess Deutschland GmbH | 1124 |
1 |
| Linde Aktiengesellschaft | 1534 |
1 |
| Other owners | 13 |