- 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: 237
10-year publication summary
|
18
|
14
|
12
|
16
|
24
|
23
|
21
|
12
|
15
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ascend Performance Materials Operations LLC | 264 |
23 |
| INEOS Europe AG | 206 |
19 |
| LG Chem, Ltd. | 17883 |
12 |
| INV Nylon Chemicals Americas, LLC | 201 |
10 |
| Mitsui Chemicals, Inc. | 3227 |
7 |
| Evonik Operations GmbH | 4283 |
7 |
| BASF SE | 21165 |
6 |
| INVISTA North America, LLC | 148 |
6 |
| INVISTA Technologies S.a.r.l. | 399 |
5 |
| Mitsubishi Gas Chemical Company, Inc. | 3599 |
5 |
| Asahi Kasei Chemicals Corporation | 567 |
4 |
| INVISTA North America S.a.r.l. | 176 |
4 |
| Novartis AG | 10338 |
3 |
| Henkel AG & Co. KGaA | 10703 |
3 |
| Arkema France | 4189 |
3 |
| Asahi Kasei Kabushiki Kaisha | 2806 |
3 |
| Daiichi Sankyo Company, Limited | 1890 |
3 |
| Nippon Soda Co., Ltd. | 883 |
3 |
| University of Tennessee Research Foundation | 754 |
3 |
| Zhejiang Huahai Pharmaceutical Co., Ltd. | 217 |
3 |
| Other owners | 105 |