- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
Patent holdings for IPC class H01L 51/56
Total number of patents in this class: 12534
10-year publication summary
|
947
|
1182
|
1168
|
1234
|
1746
|
1692
|
1867
|
1217
|
534
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Boe Technology Group Co., Ltd. | 35384 |
2555 |
| Samsung Display Co., Ltd. | 30585 |
2140 |
| Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | 4721 |
724 |
| LG Display Co., Ltd. | 11907 |
598 |
| Chengdu BOE Optoelectronics Technology Co., Ltd. | 4805 |
440 |
| Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | 3454 |
333 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8635 |
294 |
| Sharp Corporation | 10015 |
211 |
| JDI Design and Development G.K. | 1182 |
200 |
| LG Chem, Ltd. | 17205 |
187 |
| Beijing BOE Technology Development Co., Ltd. | 1600 |
187 |
| Hefei Xinsheng Optoelectronics Technology Co., Ltd. | 2483 |
185 |
| Ordos Yuansheng Optoelectronics Co., Ltd. | 1232 |
180 |
| Japan Display Inc. | 6202 |
179 |
| Semiconductor Energy Laboratory Co., Ltd. | 10902 |
163 |
| Wuhan China Star Optoelectronics Technology Co., Ltd. | 3894 |
162 |
| Applied Materials, Inc. | 16587 |
131 |
| Universal Display Corporation | 1678 |
119 |
| Kateeva, Inc. | 376 |
107 |
| Pictiva Displays International Limited | 269 |
89 |
| Other owners | 3350 |