- 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: 5116
10-year publication summary
|
531
|
505
|
553
|
449
|
401
|
319
|
297
|
296
|
110
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nichia Corporation | 3808 |
258 |
| Samsung Electronics Co., Ltd. | 152534 |
244 |
| Seoul Viosys Co., Ltd. | 1515 |
178 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1298 |
137 |
| Epistar Corporation | 1483 |
123 |
| OSRAM OLED GmbH | 1757 |
112 |
| Sensor Electronic Technology, Inc. | 465 |
111 |
| OSRAM Opto Semiconductors GmbH | 3274 |
97 |
| Toyoda Gosei Co., Ltd. | 1827 |
96 |
| Nikkiso Co., Ltd. | 806 |
96 |
| Samsung Display Co., Ltd. | 37493 |
94 |
| Lumileds Singapore Pte. Ltd. | 1260 |
90 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10983 |
89 |
| Micron Technology, Inc. | 27235 |
84 |
| Stanley Electric Co., Ltd. | 1330 |
80 |
| Panasonic Corporation | 19843 |
73 |
| Seoul Semiconductor Co., Ltd. | 1073 |
69 |
| The Regents of the University of California | 20473 |
66 |
| Dowa Electronics Materials Co., Ltd. | 639 |
66 |
| Aledia | 359 |
65 |
| Other owners | 2888 |