- 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: 11445
10-year publication summary
|
1181
|
1167
|
1233
|
1745
|
1678
|
1754
|
711
|
391
|
14
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Boe Technology Group Co., Ltd. | 41615 |
2287 |
| Samsung Display Co., Ltd. | 36065 |
1871 |
| Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | 5360 |
709 |
| LG Display Co., Ltd. | 13857 |
561 |
| Chengdu BOE Optoelectronics Technology Co., Ltd. | 6750 |
349 |
| Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | 3735 |
313 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8475 |
290 |
| Magnolia Blue Corporation | 1164 |
197 |
| Beijing BOE Technology Development Co., Ltd. | 3432 |
182 |
| Ordos Yuansheng Optoelectronics Co., Ltd. | 1278 |
179 |
| Hefei Xinsheng Optoelectronics Technology Co., Ltd. | 2569 |
176 |
| Sharp Corporation | 10297 |
169 |
| LG Chem, Ltd. | 17685 |
167 |
| Magnolia White Corporation | 5415 |
163 |
| Wuhan China Star Optoelectronics Technology Co., Ltd. | 4230 |
159 |
| Semiconductor Energy Laboratory Co., Ltd. | 11534 |
128 |
| Applied Materials, Inc. | 19173 |
127 |
| Universal Display Corporation | 1956 |
115 |
| Kateeva, Inc. | 394 |
101 |
| Pictiva Displays International Limited | 261 |
87 |
| Other owners | 3115 |