- 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: 1185
10-year publication summary
|
122
|
150
|
141
|
131
|
112
|
74
|
76
|
77
|
59
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ennostar Corporation | 1576 |
109 |
| OSRAM Opto Semiconductors GmbH | 3243 |
49 |
| Ams-osram International GmbH | 1658 |
48 |
| OSRAM OLED GmbH | 1392 |
45 |
| Samsung Electronics Co., Ltd. | 157946 |
36 |
| Seoul Viosys Co., Ltd. | 1561 |
36 |
| META Platforms Technologies, LLC | 6473 |
36 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1253 |
29 |
| Dowa Electronics Materials Co., Ltd. | 636 |
28 |
| Shin-Etsu Handotai Co., Ltd. | 1306 |
27 |
| Quanzhou Sanan Semiconductor Technology Co., Ltd | 252 |
24 |
| Apple Inc. | 58885 |
22 |
| Samsung Display Co., Ltd. | 38676 |
22 |
| Lumileds Singapore Pte. Ltd. | 1262 |
22 |
| Tianjin Sanan Optoelectronics Co., Ltd. | 106 |
19 |
| Showa Denko K.K. | 2069 |
18 |
| Rohm Co., Ltd. | 6837 |
17 |
| Nichia Corporation | 3876 |
17 |
| International Business Machines Corporation | 62671 |
14 |
| Lumileds LLC | 784 |
14 |
| Other owners | 553 |