- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 33/40 - Materials therefor
Patent holdings for IPC class H01L 33/40
Total number of patents in this class: 2433
10-year publication summary
|
228
|
225
|
252
|
269
|
219
|
173
|
135
|
159
|
134
|
58
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seoul Viosys Co., Ltd. | 1487 |
175 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1345 |
144 |
| Samsung Electronics Co., Ltd. | 148924 |
137 |
| Epistar Corporation | 1478 |
127 |
| Nichia Corporation | 3770 |
114 |
| OSRAM Opto Semiconductors GmbH | 3286 |
108 |
| Samsung Display Co., Ltd. | 36165 |
95 |
| OSRAM OLED GmbH | 1765 |
95 |
| Micron Technology, Inc. | 26502 |
51 |
| Quanzhou Sanan Semiconductor Technology Co., Ltd | 232 |
44 |
| Sensor Electronic Technology, Inc. | 469 |
41 |
| Lumileds Singapore Pte. Ltd. | 1264 |
39 |
| Creeled, Inc. | 949 |
37 |
| LG Electronics Inc. | 73678 |
31 |
| LG Display Co., Ltd. | 13863 |
30 |
| LG Innotek Co., Ltd. | 7915 |
29 |
| Ams-osram International GmbH | 1110 |
28 |
| Seoul Semiconductor Co., Ltd. | 1072 |
26 |
| Rohm Co., Ltd. | 6553 |
25 |
| Toyoda Gosei Co., Ltd. | 1821 |
25 |
| Other owners | 1032 |