- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 33/52 - Encapsulations
Patent holdings for IPC class H01L 33/52
Total number of patents in this class: 2048
10-year publication summary
|
195
|
183
|
172
|
250
|
189
|
155
|
129
|
142
|
142
|
47
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nichia Corporation | 3669 |
195 |
| OSRAM Opto Semiconductors GmbH | 3316 |
124 |
| Samsung Electronics Co., Ltd. | 144426 |
75 |
| Samsung Display Co., Ltd. | 34290 |
71 |
| OSRAM OLED GmbH | 1783 |
57 |
| LG Innotek Co., Ltd. | 7552 |
53 |
| Lumileds LLC | 1911 |
50 |
| Seoul Semiconductor Co., Ltd. | 1078 |
38 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1424 |
34 |
| Innolux Corporation | 3216 |
31 |
| Creeled, Inc. | 782 |
26 |
| Rohm Co., Ltd. | 6410 |
24 |
| Epistar Corporation | 1489 |
24 |
| LG Electronics Inc. | 72559 |
23 |
| Seoul Viosys Co., Ltd. | 1465 |
23 |
| Ams-osram International GmbH | 953 |
23 |
| Boe Technology Group Co., Ltd. | 40653 |
22 |
| LG Display Co., Ltd. | 13226 |
21 |
| Nitto Denko Corporation | 8196 |
21 |
| Lextar Electronics Corporation | 388 |
19 |
| Other owners | 1094 |