• 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: 21009

10-year publication summary

2255
2508
2965
2952
2599
1138
588
38
10
1
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Samsung Display Co., Ltd.
39012
4308
Boe Technology Group Co., Ltd.
44549
2602
LG Display Co., Ltd.
15038
1828
Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
5571
1021
Magnolia White Corporation
5597
536
Chengdu BOE Optoelectronics Technology Co., Ltd.
7852
486
Semiconductor Energy Laboratory Co., Ltd.
11890
461
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
3755
334
LG Chem, Ltd.
17967
327
Shenzhen China Star Optoelectronics Technology Co., Ltd.
8470
287
Magnolia Blue Corporation
1155
277
Samsung Electronics Co., Ltd.
158842
264
Sharp Corporation
10860
250
Universal Display Corporation
2101
229
OSRAM OLED GmbH
1390
197
Wuhan China Star Optoelectronics Technology Co., Ltd.
4329
181
Wuhan Tianma Micro-Electronics Co., Ltd.
1316
176
Hefei Xinsheng Optoelectronics Technology Co., Ltd.
2651
167
Pictiva Displays International Limited
252
165
Ordos Yuansheng Optoelectronics Co., Ltd.
1300
163
Other owners 6750