- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 33/50 - Wavelength conversion elements
Patent holdings for IPC class H01L 33/50
Total number of patents in this class: 11633
10-year publication summary
|
1034
|
1055
|
1080
|
1253
|
1173
|
902
|
907
|
810
|
664
|
44
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nichia Corporation | 3545 |
1031 |
| OSRAM Opto Semiconductors GmbH | 3337 |
711 |
| Samsung Electronics Co., Ltd. | 138729 |
498 |
| Lumileds LLC | 1883 |
453 |
| Samsung Display Co., Ltd. | 32745 |
369 |
| Seoul Semiconductor Co., Ltd. | 1067 |
329 |
| OSRAM OLED GmbH | 1796 |
315 |
| Denka Company Limited | 2458 |
186 |
| Panasonic Intellectual Property Management Co., Ltd. | 29687 |
178 |
| Epistar Corporation | 1493 |
174 |
| Creeled, Inc. | 784 |
152 |
| Seoul Viosys Co., Ltd. | 1439 |
145 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1535 |
132 |
| Koninklijke Philips N.V. | 23971 |
117 |
| Koninklijke Philips Electronics N.V. | 10889 |
115 |
| Innolux Corporation | 2972 |
115 |
| Sharp Kabushiki Kaisha | 18873 |
115 |
| LG Electronics Inc. | 70957 |
105 |
| LG Innotek Co., Ltd. | 7225 |
105 |
| Nippon Electric Glass Co., Ltd. | 2394 |
100 |
| Other owners | 6188 |