- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 33/12 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a stress relaxation structure, e.g. buffer layer
Patent holdings for IPC class H01L 33/12
Total number of patents in this class: 1394
10-year publication summary
|
165
|
148
|
151
|
121
|
137
|
95
|
101
|
84
|
71
|
36
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 131630 |
69 |
| Seoul Viosys Co., Ltd. | 1359 |
64 |
| Sensor Electronic Technology, Inc. | 471 |
57 |
| Epistar Corporation | 1553 |
52 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1710 |
52 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
28 |
| OSRAM OLED GmbH | 1841 |
28 |
| Lumileds LLC | 1827 |
26 |
| LG Innotek Co., Ltd. | 6758 |
25 |
| OSRAM Opto Semiconductors GmbH | 3390 |
25 |
| Quanzhou Sanan Semiconductor Technology Co., Ltd | 202 |
24 |
| Nichia Corporation | 3394 |
22 |
| Seoul Semiconductor Co., Ltd. | 1073 |
22 |
| Samsung Display Co., Ltd. | 30585 |
19 |
| PlayNitride Display Co., Ltd. | 273 |
17 |
| Glo Technologies LLC | 104 |
17 |
| Rohm Co., Ltd. | 5843 |
16 |
| Toyoda Gosei Co., Ltd. | 1746 |
16 |
| Showa Denko K.K. | 2539 |
16 |
| Enkris Semiconductor, Inc. | 310 |
16 |
| Other owners | 783 |