- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 33/32 - Materials of the light emitting region containing only elements of group III and group V of the periodic system containing nitrogen
Patent holdings for IPC class H01L 33/32
Total number of patents in this class: 5072
10-year publication summary
|
531
|
505
|
553
|
449
|
401
|
318
|
283
|
290
|
110
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nichia Corporation | 3836 |
257 |
| Samsung Electronics Co., Ltd. | 154120 |
242 |
| Seoul Viosys Co., Ltd. | 1524 |
175 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1283 |
137 |
| OSRAM OLED GmbH | 1753 |
112 |
| Sensor Electronic Technology, Inc. | 466 |
111 |
| Epistar Corporation | 1420 |
109 |
| OSRAM Opto Semiconductors GmbH | 3262 |
96 |
| Nikkiso Co., Ltd. | 806 |
95 |
| Toyoda Gosei Co., Ltd. | 1837 |
94 |
| Samsung Display Co., Ltd. | 37933 |
92 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11013 |
89 |
| Lumileds Singapore Pte. Ltd. | 1257 |
89 |
| Micron Technology, Inc. | 27310 |
84 |
| Stanley Electric Co., Ltd. | 1346 |
80 |
| Panasonic Corporation | 19577 |
73 |
| Seoul Semiconductor Co., Ltd. | 1070 |
69 |
| The Regents of the University of California | 20556 |
66 |
| Dowa Electronics Materials Co., Ltd. | 636 |
66 |
| Aledia | 361 |
64 |
| Other owners | 2872 |