- All sections
- C - Chemistrymetallurgy
- C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K 5/526 - Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
Patent holdings for IPC class C08K 5/526
Total number of patents in this class: 405
10-year publication summary
|
28
|
36
|
37
|
30
|
44
|
35
|
25
|
30
|
28
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 21303 |
46 |
| Kingfa SCI & Tech Co. Ltd. | 704 |
30 |
| SABIC Global Technologies B.V. | 4597 |
28 |
| Idemitsu Kosan Co., Ltd. | 4235 |
13 |
| Sumitomo Chemical Company, Limited | 9016 |
12 |
| Chemtura Corporation | 127 |
10 |
| Borealis AG | 2737 |
8 |
| Cytec Industries Inc. | 408 |
8 |
| SHPP Global Technologies B.V. | 1103 |
8 |
| Lotte Chemical Corporation | 786 |
6 |
| NOVA Chemicals (International) S.A. | 797 |
6 |
| LG Chem, Ltd. | 17921 |
5 |
| Covestro Deutschland AG | 2833 |
5 |
| Eastman Chemical Company | 2087 |
5 |
| Mitsubishi Engineering-Plastics Corporation | 300 |
5 |
| SI Group, Inc. | 185 |
5 |
| Clariant Plastics & Coatings Ltd | 82 |
5 |
| SI Group Switzerland (CHAA) GmbH | 21 |
5 |
| Sabic Innovative Plastics IP B.V. | 592 |
4 |
| Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation | 293 |
4 |
| Other owners | 187 |