- 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: 886
10-year publication summary
68
|
83
|
61
|
57
|
56
|
64
|
63
|
65
|
43
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Sumitomo Chemical Company, Limited | 8808 |
46 |
FUJIFILM Corporation | 27102 |
33 |
Cambridge Display Technology Limited | 513 |
17 |
Shaanxi Lighte Optoelectronics Material Co., Ltd. | 190 |
17 |
Merck Patent GmbH | 5909 |
15 |
Ocean's King Lighting Science & Technology Co., Ltd. | 273 |
15 |
South China University of Technology | 1581 |
15 |
BASF SE | 19740 |
14 |
LG Chem, Ltd. | 17205 |
14 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
14 |
Toyobo Co., Ltd. | 2286 |
14 |
Kwansei Gakuin Educational Foundation | 198 |
13 |
Osaka University | 3143 |
13 |
Ricoh Company, Ltd. | 13266 |
12 |
Heliatek GmbH | 122 |
12 |
JNC Corporation | 1527 |
12 |
Sekisui Chemical Co., Ltd. | 3159 |
11 |
Nissan Chemical Corporation | 1725 |
10 |
The Regents of the University of Michigan | 4409 |
9 |
Alliance for Sustainable Energy, LLC | 698 |
9 |
Other owners | 571 |