- 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: 233
10-year publication summary
|
11
|
18
|
14
|
11
|
12
|
20
|
20
|
20
|
12
|
15
|
| 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 | 275 |
25 |
| INEOS Europe AG | 206 |
19 |
| LG Chem, Ltd. | 17704 |
12 |
| INV Nylon Chemicals Americas, LLC | 192 |
10 |
| Mitsui Chemicals, Inc. | 3237 |
7 |
| BASF SE | 21101 |
6 |
| Evonik Operations GmbH | 4168 |
6 |
| INVISTA North America, LLC | 150 |
6 |
| INVISTA Technologies S.a.r.l. | 405 |
5 |
| Mitsubishi Gas Chemical Company, Inc. | 3512 |
5 |
| Asahi Kasei Chemicals Corporation | 610 |
4 |
| INVISTA North America S.a.r.l. | 176 |
4 |
| Novartis AG | 10534 |
3 |
| Henkel AG & Co. KGaA | 10641 |
3 |
| Arkema France | 4169 |
3 |
| Asahi Kasei Kabushiki Kaisha | 2716 |
3 |
| Daiichi Sankyo Company, Limited | 1877 |
3 |
| Nippon Soda Co., Ltd. | 889 |
3 |
| University of Tennessee Research Foundation | 755 |
3 |
| Zhejiang Huahai Pharmaceutical Co., Ltd. | 211 |
3 |
| Other owners | 100 |