- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 211/55 - Diphenylamines
Patent holdings for IPC class C07C 211/55
Total number of patents in this class: 152
10-year publication summary
|
11
|
9
|
3
|
9
|
6
|
7
|
10
|
10
|
14
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sennics Co., Ltd. | 102 |
20 |
| Sinopec Dalian Research Institute of Petroleum and Petrochemicals Co., Ltd. | 151 |
6 |
| China Petroleum & Chemical Corporation | 2190 |
5 |
| Lanxess Solutions US, Inc. | 102 |
5 |
| Hodogaya Chemical Co., Ltd. | 434 |
4 |
| Lanxess Corporation | 290 |
4 |
| Nissan Chemical Industries, Ltd. | 1627 |
4 |
| Sironax LTD | 61 |
4 |
| Samsung Display Co., Ltd. | 39229 |
3 |
| BASF SE | 21334 |
3 |
| ExxonMobil Research And Engineering Company | 2389 |
3 |
| Chemtura Corporation | 121 |
3 |
| Chugai Seiyaku Kabushiki Kaisha | 1435 |
3 |
| Infineum International Limited | 454 |
3 |
| Saint Louis University | 292 |
3 |
| The Trustees of Indiana University | 848 |
3 |
| LG Chem, Ltd. | 17986 |
2 |
| Merck Patent GmbH | 5751 |
2 |
| Sumitomo Chemical Company, Limited | 8992 |
2 |
| The General Hospital Corporation | 4900 |
2 |
| Other owners | 68 |