- 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: 5143
10-year publication summary
|
488
|
535
|
531
|
505
|
553
|
449
|
404
|
330
|
355
|
97
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nichia Corporation | 3394 |
269 |
| Samsung Electronics Co., Ltd. | 131630 |
202 |
| Seoul Viosys Co., Ltd. | 1359 |
180 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1710 |
164 |
| Lumileds LLC | 1827 |
124 |
| Epistar Corporation | 1553 |
117 |
| OSRAM OLED GmbH | 1841 |
114 |
| Sensor Electronic Technology, Inc. | 471 |
108 |
| Nikkiso Co., Ltd. | 754 |
99 |
| OSRAM Opto Semiconductors GmbH | 3390 |
97 |
| Showa Denko K.K. | 2539 |
91 |
| Micron Technology, Inc. | 24960 |
83 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
83 |
| Toyoda Gosei Co., Ltd. | 1746 |
82 |
| Panasonic Corporation | 20786 |
77 |
| Stanley Electric Co., Ltd. | 1102 |
76 |
| Samsung Display Co., Ltd. | 30585 |
72 |
| Seoul Semiconductor Co., Ltd. | 1073 |
70 |
| The Regents of the University of California | 18943 |
67 |
| Rohm Co., Ltd. | 5843 |
66 |
| Other owners | 2902 |