- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 253/34 - SeparationPurification
Patent holdings for IPC class C07C 253/34
Total number of patents in this class: 226
10-year publication summary
|
12
|
18
|
14
|
12
|
16
|
24
|
23
|
21
|
11
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ascend Performance Materials Operations LLC | 272 |
27 |
| INEOS Europe AG | 204 |
19 |
| LG Chem, Ltd. | 17638 |
11 |
| INV Nylon Chemicals Americas, LLC | 184 |
8 |
| Mitsui Chemicals, Inc. | 3219 |
7 |
| BASF SE | 20915 |
6 |
| Evonik Operations GmbH | 4110 |
6 |
| INVISTA North America, LLC | 152 |
6 |
| INVISTA Technologies S.a.r.l. | 415 |
5 |
| Mitsubishi Gas Chemical Company, Inc. | 3465 |
5 |
| Asahi Kasei Chemicals Corporation | 680 |
4 |
| INVISTA North America S.a.r.l. | 176 |
4 |
| Novartis AG | 10850 |
3 |
| Henkel AG & Co. KGaA | 10574 |
3 |
| Arkema France | 4154 |
3 |
| Asahi Kasei Kabushiki Kaisha | 2675 |
3 |
| Daiichi Sankyo Company, Limited | 1874 |
3 |
| Nippon Soda Co., Ltd. | 894 |
3 |
| University of Tennessee Research Foundation | 758 |
3 |
| Zhejiang Huahai Pharmaceutical Co., Ltd. | 209 |
3 |
| Other owners | 94 |