- 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: 1219
10-year publication summary
|
122
|
150
|
141
|
131
|
112
|
78
|
85
|
83
|
60
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Epistar Corporation | 1479 |
107 |
| OSRAM OLED GmbH | 1759 |
62 |
| OSRAM Opto Semiconductors GmbH | 3279 |
50 |
| Samsung Electronics Co., Ltd. | 151017 |
38 |
| Seoul Viosys Co., Ltd. | 1505 |
38 |
| META Platforms Technologies, LLC | 6149 |
36 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1317 |
32 |
| Ams-osram International GmbH | 1158 |
32 |
| Dowa Electronics Materials Co., Ltd. | 640 |
31 |
| Shin-Etsu Handotai Co., Ltd. | 1290 |
28 |
| Quanzhou Sanan Semiconductor Technology Co., Ltd | 236 |
26 |
| Apple Inc. | 56891 |
22 |
| Samsung Display Co., Ltd. | 37127 |
22 |
| Lumileds Singapore Pte. Ltd. | 1263 |
22 |
| Tianjin Sanan Optoelectronics Co., Ltd. | 103 |
19 |
| Showa Denko K.K. | 2137 |
18 |
| Rohm Co., Ltd. | 6665 |
17 |
| Nichia Corporation | 3791 |
17 |
| International Business Machines Corporation | 61904 |
14 |
| Lumileds LLC | 740 |
14 |
| Other owners | 574 |