- 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: 5301
10-year publication summary
|
535
|
531
|
505
|
553
|
450
|
406
|
339
|
355
|
322
|
104
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nichia Corporation | 3708 |
270 |
| Samsung Electronics Co., Ltd. | 146534 |
262 |
| Seoul Viosys Co., Ltd. | 1469 |
184 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1417 |
145 |
| Epistar Corporation | 1489 |
125 |
| OSRAM OLED GmbH | 1777 |
113 |
| Sensor Electronic Technology, Inc. | 468 |
112 |
| Nikkiso Co., Ltd. | 779 |
101 |
| OSRAM Opto Semiconductors GmbH | 3311 |
98 |
| Toyoda Gosei Co., Ltd. | 1781 |
96 |
| Lumileds Singapore Pte. Ltd. | 1276 |
96 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10917 |
91 |
| Samsung Display Co., Ltd. | 34842 |
89 |
| Micron Technology, Inc. | 26256 |
87 |
| Stanley Electric Co., Ltd. | 1248 |
80 |
| Panasonic Corporation | 20093 |
73 |
| Seoul Semiconductor Co., Ltd. | 1080 |
71 |
| The Regents of the University of California | 19943 |
69 |
| NGK Insulators, Ltd. | 4965 |
67 |
| Dowa Electronics Materials Co., Ltd. | 632 |
67 |
| Other owners | 3005 |