- All sections
- C - Chemistry; metallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 211/55 - Diphenylamines
Patent holdings for IPC class C07C 211/55
Total number of patents in this class: 128
10-year publication summary
|
10
|
12
|
11
|
9
|
3
|
9
|
6
|
7
|
9
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sennics Co., Ltd. | 82 |
11 |
| Chemtura Corporation | 211 |
6 |
| Nissan Chemical Industries, Ltd. | 1822 |
5 |
| Lanxess Solutions US, Inc. | 116 |
5 |
| Samsung Display Co., Ltd. | 30585 |
3 |
| ExxonMobil Research And Engineering Company | 2830 |
3 |
| Merck Patent GmbH | 5909 |
3 |
| Idemitsu Kosan Co., Ltd. | 3995 |
3 |
| Hodogaya Chemical Co., Ltd. | 417 |
3 |
| Infineum International Limited | 340 |
3 |
| Saint Louis University | 289 |
3 |
| The Trustees of Indiana University | 630 |
3 |
| Sironax LTD | 39 |
3 |
| BASF SE | 19740 |
2 |
| LG Chem, Ltd. | 17205 |
2 |
| Sumitomo Chemical Company, Limited | 8808 |
2 |
| Purdue Research Foundation | 3277 |
2 |
| China Petroleum & Chemical Corporation | 1623 |
2 |
| Chugai Seiyaku Kabushiki Kaisha | 1259 |
2 |
| Kikkoman Corporation | 443 |
2 |
| Other owners | 60 |