- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 33/30 - Materials of the light emitting region containing only elements of group III and group V of the periodic system
Patent holdings for IPC class H01L 33/30
Total number of patents in this class: 1237
10-year publication summary
|
96
|
122
|
150
|
141
|
131
|
114
|
83
|
91
|
90
|
55
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Epistar Corporation | 1489 |
107 |
| OSRAM OLED GmbH | 1776 |
63 |
| OSRAM Opto Semiconductors GmbH | 3311 |
50 |
| Samsung Electronics Co., Ltd. | 146811 |
39 |
| Seoul Viosys Co., Ltd. | 1472 |
39 |
| META Platforms Technologies, LLC | 5853 |
36 |
| Dowa Electronics Materials Co., Ltd. | 631 |
34 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1415 |
32 |
| Ams-osram International GmbH | 1007 |
31 |
| Shin-Etsu Handotai Co., Ltd. | 1284 |
29 |
| Quanzhou Sanan Semiconductor Technology Co., Ltd | 230 |
27 |
| Samsung Display Co., Ltd. | 34907 |
23 |
| Lumileds Singapore Pte. Ltd. | 1275 |
23 |
| Apple Inc. | 55174 |
22 |
| Tianjin Sanan Optoelectronics Co., Ltd. | 100 |
22 |
| Showa Denko K.K. | 2220 |
18 |
| Nichia Corporation | 3713 |
18 |
| Rohm Co., Ltd. | 6471 |
17 |
| International Business Machines Corporation | 61305 |
14 |
| Toshiba Corporation | 12367 |
14 |
| Other owners | 579 |