• 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: 23282

10-year publication summary

1902
2191
2255
2509
2970
2982
2811
2056
1024
31
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Samsung Display Co., Ltd.
30585
4944
Boe Technology Group Co., Ltd.
35384
2866
LG Display Co., Ltd.
11907
2067
Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
4721
1047
Chengdu BOE Optoelectronics Technology Co., Ltd.
4805
581
Japan Display Inc.
6202
575
Semiconductor Energy Laboratory Co., Ltd.
10902
562
LG Chem, Ltd.
17205
382
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
3454
355
Sharp Corporation
10015
295
Shenzhen China Star Optoelectronics Technology Co., Ltd.
8635
292
Samsung Electronics Co., Ltd.
131630
287
JDI Design and Development G.K.
1182
285
Universal Display Corporation
1678
247
OSRAM OLED GmbH
1841
233
Wuhan Tianma Micro-Electronics Co., Ltd.
971
197
Wuhan China Star Optoelectronics Technology Co., Ltd.
3894
186
Hefei Xinsheng Optoelectronics Technology Co., Ltd.
2483
174
Ordos Yuansheng Optoelectronics Co., Ltd.
1232
165
Pictiva Displays International Limited
269
163
Other owners 7379