- All sections
- C - Chemistry; metallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 319/28 - Separation; Purification
Patent holdings for IPC class C07C 319/28
Total number of patents in this class: 211
10-year publication summary
|
9
|
11
|
22
|
18
|
25
|
25
|
18
|
13
|
14
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Arkema France | 3889 |
19 |
| Sumitomo Chemical Company, Limited | 8979 |
16 |
| Evonik Operations GmbH | 4022 |
14 |
| Mitsui Chemicals, Inc. | 3189 |
8 |
| Chevron Phillips Chemical Company LP | 1818 |
8 |
| CJ Cheiljedang Corporation | 3246 |
7 |
| Bluestar Adisseo Nanjing Co.,Ltd. | 8 |
6 |
| Evonik Degussa GmbH | 1557 |
5 |
| Uop LLC | 4188 |
5 |
| Adisseo France S.A.S. | 146 |
5 |
| Zhejiang Nhu Company Limited | 167 |
5 |
| Shandong Nhu Amino Acid Co.,Ltd. | 15 |
5 |
| Arkema Inc. | 1073 |
4 |
| KYORIN Pharmaceutical Co., Ltd. | 175 |
4 |
| PMC Organometallix, Inc. | 26 |
4 |
| Nacuity Pharmaceuticals, Inc. | 41 |
4 |
| Pfizer Inc. | 3371 |
3 |
| Chevron Oronite Company LLC | 560 |
3 |
| Glytech, Inc. | 70 |
3 |
| Indena S.p.A. | 651 |
3 |
| Other owners | 80 |