- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
Patent holdings for IPC class H01L 51/52
Total number of patents in this class: 21691
10-year publication summary
2189
|
2255
|
2508
|
2966
|
2956
|
2622
|
1346
|
842
|
45
|
5
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Samsung Display Co., Ltd. | 34984 |
4520 |
Boe Technology Group Co., Ltd. | 41346 |
2657 |
LG Display Co., Ltd. | 13741 |
1918 |
Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | 5303 |
1027 |
Japan Display Inc. | 6970 |
548 |
Chengdu BOE Optoelectronics Technology Co., Ltd. | 6599 |
505 |
Semiconductor Energy Laboratory Co., Ltd. | 11448 |
491 |
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | 3721 |
341 |
LG Chem, Ltd. | 17641 |
336 |
Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8476 |
287 |
Magnolia Blue Corporation | 1159 |
277 |
Samsung Electronics Co., Ltd. | 147003 |
270 |
Sharp Corporation | 10270 |
256 |
Universal Display Corporation | 1926 |
234 |
OSRAM OLED GmbH | 1776 |
231 |
Wuhan Tianma Micro-Electronics Co., Ltd. | 1134 |
182 |
Wuhan China Star Optoelectronics Technology Co., Ltd. | 4204 |
181 |
Hefei Xinsheng Optoelectronics Technology Co., Ltd. | 2567 |
167 |
Ordos Yuansheng Optoelectronics Co., Ltd. | 1277 |
164 |
Pictiva Displays International Limited | 263 |
164 |
Other owners | 6935 |