• 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