- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 45/81 - SeparationPurificationStabilisationUse of additives by change in the physical state, e.g. crystallisation
Patent holdings for IPC class C07C 45/81
Total number of patents in this class: 117
10-year publication summary
|
3
|
8
|
10
|
5
|
11
|
13
|
2
|
19
|
4
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Symrise AG | 1867 |
9 |
| United Therapeutics Corporation | 334 |
6 |
| Topsoe A/S | 1074 |
6 |
| Arkema France | 4230 |
4 |
| Rhodia Operations | 1484 |
4 |
| Sino-high (China) Co. Ltd. | 4 |
4 |
| Kaneka Corporation | 4822 |
3 |
| Braskem S.A. | 482 |
3 |
| Dalian University of Technology | 1608 |
3 |
| UPL Limited | 639 |
3 |
| LanzaTech, Inc. | 329 |
3 |
| Specialty Operations France | 938 |
3 |
| LG Chem, Ltd. | 17978 |
2 |
| Archer Daniels Midland Company | 1072 |
2 |
| Hitachi Plant Technologies, Ltd. | 57 |
2 |
| M. Technique Co., Ltd. | 253 |
2 |
| Solvay Specialty Polymers USA, LLC | 505 |
2 |
| Guangzhou Qinglan Biotechnology Co., Ltd. | 4 |
2 |
| Ghpharm Co., Ltd. | 4 |
2 |
| UCG Holdings, LLC | 2 |
2 |
| Other owners | 50 |