- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector
Patent holdings for IPC class H01L 33/46
Total number of patents in this class: 2374
10-year publication summary
|
221
|
243
|
230
|
229
|
204
|
197
|
173
|
183
|
160
|
87
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| OSRAM Opto Semiconductors GmbH | 3285 |
157 |
| Epistar Corporation | 1477 |
140 |
| Nichia Corporation | 3774 |
138 |
| Seoul Viosys Co., Ltd. | 1489 |
128 |
| Samsung Electronics Co., Ltd. | 149362 |
127 |
| OSRAM OLED GmbH | 1764 |
110 |
| Lumileds Singapore Pte. Ltd. | 1264 |
100 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1336 |
63 |
| Creeled, Inc. | 952 |
62 |
| Jade Bird Display (Shanghai) Limited | 387 |
53 |
| Lumileds LLC | 729 |
40 |
| Seoul Semiconductor Co., Ltd. | 1071 |
39 |
| Samsung Display Co., Ltd. | 36421 |
37 |
| Xiamen San'an Optoelectronics Co., Ltd. | 299 |
36 |
| Ams-osram International GmbH | 1132 |
36 |
| Toyoda Gosei Co., Ltd. | 1820 |
33 |
| META Platforms Technologies, LLC | 6062 |
33 |
| Boe Technology Group Co., Ltd. | 41841 |
29 |
| Rohm Co., Ltd. | 6567 |
25 |
| Innolux Corporation | 3426 |
25 |
| Other owners | 963 |