- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 51/46 - Selection of materials
Patent holdings for IPC class H01L 51/46
Total number of patents in this class: 877
10-year publication summary
|
83
|
61
|
57
|
56
|
64
|
63
|
65
|
42
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Chemical Company, Limited | 8976 |
46 |
| FUJIFILM Corporation | 28506 |
33 |
| Cambridge Display Technology Limited | 503 |
17 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 222 |
17 |
| Merck Patent GmbH | 5847 |
15 |
| Ocean's King Lighting Science & Technology Co., Ltd. | 273 |
15 |
| South China University of Technology | 1699 |
15 |
| BASF SE | 20387 |
14 |
| LG Chem, Ltd. | 17632 |
14 |
| Panasonic Intellectual Property Management Co., Ltd. | 29620 |
14 |
| Toyobo Co., Ltd. | 2419 |
14 |
| Kwansei Gakuin Educational Foundation | 205 |
13 |
| Osaka University | 3293 |
13 |
| Ricoh Company, Ltd. | 13205 |
12 |
| Heliatek GmbH | 130 |
12 |
| JNC Corporation | 1532 |
12 |
| Sekisui Chemical Co., Ltd. | 3303 |
11 |
| Nissan Chemical Corporation | 1882 |
10 |
| The Regents of the University of Michigan | 4570 |
9 |
| Alliance for Sustainable Energy, LLC | 755 |
9 |
| Other owners | 562 |