- All sections
- C - Chemistry; metallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 253/34 - Separation; Purification
Patent holdings for IPC class C07C 253/34
Total number of patents in this class: 226
10-year publication summary
|
24
|
12
|
18
|
14
|
12
|
16
|
24
|
23
|
20
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ascend Performance Materials Operations LLC | 260 |
28 |
| INEOS Europe AG | 188 |
19 |
| LG Chem, Ltd. | 17205 |
11 |
| INV Nylon Chemicals Americas, LLC | 182 |
9 |
| Mitsui Chemicals, Inc. | 3134 |
7 |
| INVISTA Technologies S.a.r.l. | 450 |
7 |
| INVISTA North America, LLC | 170 |
7 |
| Evonik Operations GmbH | 3879 |
6 |
| BASF SE | 19740 |
5 |
| Asahi Kasei Chemicals Corporation | 809 |
5 |
| Arkema France | 3790 |
4 |
| INVISTA North America S.a.r.l. | 182 |
4 |
| Mitsubishi Gas Chemical Company, Inc. | 3188 |
4 |
| Asahi Kasei Kabushiki Kaisha | 2429 |
3 |
| Daiichi Sankyo Company, Limited | 1829 |
3 |
| Nippon Soda Co., Ltd. | 890 |
3 |
| University of Tennessee Research Foundation | 727 |
3 |
| Zhejiang Huahai Pharmaceutical Co., Ltd. | 178 |
3 |
| Oriental (Luzhou) Agrochemicals. Co., Ltd. | 15 |
3 |
| Hebei Lansheng Biotech Co., Ltd | 4 |
3 |
| Other owners | 89 |