- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 15/28 - Anti-oxidant compositionsCompositions inhibiting chemical change containing organic compounds containing nitrogen, oxygen and sulfur
Patent holdings for IPC class C09K 15/28
Total number of patents in this class: 70
10-year publication summary
|
8
|
11
|
5
|
9
|
9
|
5
|
6
|
1
|
3
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Soilgenic Technologies, LLC | 58 |
21 |
| Stepan Company | 574 |
16 |
| Specialty Operations France | 872 |
8 |
| Eastman Chemical Company | 2103 |
2 |
| BASF SE | 21101 |
1 |
| Merck Patent GmbH | 5733 |
1 |
| Olympus Corporation | 13083 |
1 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 5094 |
1 |
| Wako Pure Chemical Industries, Ltd. | 130 |
1 |
| Active Agriscience Inc. | 29 |
1 |
| Adeka Corporation | 1368 |
1 |
| BL Technologies, Inc. | 837 |
1 |
| Dorf Ketal Chemicals (India) Private Limited | 74 |
1 |
| IFP Energies Nouvelles | 2990 |
1 |
| IHI Corporation | 3468 |
1 |
| Indian Oil Corporation Limited | 334 |
1 |
| Koch Agronomic Services, LLC | 194 |
1 |
| Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences | 2078 |
1 |
| Tongji University | 531 |
1 |
| Zeon Corporation | 4116 |
1 |
| Other owners | 7 |