- 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: 5017
10-year publication summary
|
531
|
505
|
553
|
449
|
401
|
316
|
268
|
278
|
107
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nichia Corporation | 3874 |
257 |
| Samsung Electronics Co., Ltd. | 157719 |
242 |
| Seoul Viosys Co., Ltd. | 1557 |
175 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1253 |
133 |
| Ennostar Corporation | 1577 |
129 |
| Sensor Electronic Technology, Inc. | 466 |
110 |
| Toyoda Gosei Co., Ltd. | 1858 |
94 |
| OSRAM Opto Semiconductors GmbH | 3244 |
94 |
| OSRAM OLED GmbH | 1392 |
89 |
| Samsung Display Co., Ltd. | 38627 |
88 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11123 |
88 |
| Lumileds Singapore Pte. Ltd. | 1262 |
87 |
| Micron Technology, Inc. | 27657 |
84 |
| Stanley Electric Co., Ltd. | 1375 |
81 |
| Nikkiso Co., Ltd. | 791 |
75 |
| Panasonic Corporation | 19019 |
73 |
| Seoul Semiconductor Co., Ltd. | 1053 |
69 |
| Dowa Electronics Materials Co., Ltd. | 635 |
66 |
| The Regents of the University of California | 20745 |
65 |
| Aledia | 367 |
64 |
| Other owners | 2854 |