- 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: 5295
10-year publication summary
|
535
|
531
|
505
|
553
|
452
|
408
|
343
|
369
|
328
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nichia Corporation | 3536 |
272 |
| Samsung Electronics Co., Ltd. | 138320 |
257 |
| Seoul Viosys Co., Ltd. | 1434 |
186 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1538 |
152 |
| Lumileds LLC | 1876 |
128 |
| Epistar Corporation | 1494 |
122 |
| OSRAM OLED GmbH | 1796 |
113 |
| Sensor Electronic Technology, Inc. | 472 |
111 |
| Nikkiso Co., Ltd. | 785 |
101 |
| OSRAM Opto Semiconductors GmbH | 3337 |
99 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10667 |
93 |
| Toyoda Gosei Co., Ltd. | 1742 |
88 |
| Micron Technology, Inc. | 25728 |
86 |
| Samsung Display Co., Ltd. | 32641 |
83 |
| Stanley Electric Co., Ltd. | 1158 |
76 |
| Seoul Semiconductor Co., Ltd. | 1065 |
75 |
| Panasonic Corporation | 20339 |
73 |
| The Regents of the University of California | 19479 |
69 |
| NGK Insulators, Ltd. | 4782 |
67 |
| Showa Denko K.K. | 2341 |
67 |
| Other owners | 2977 |