- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 33/56 - Materials, e.g. epoxy or silicone resin
Patent holdings for IPC class H01L 33/56
Total number of patents in this class: 3319
10-year publication summary
|
358
|
410
|
424
|
343
|
377
|
346
|
262
|
198
|
194
|
56
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nichia Corporation | 3394 |
417 |
| OSRAM Opto Semiconductors GmbH | 3390 |
173 |
| OSRAM OLED GmbH | 1841 |
121 |
| Samsung Electronics Co., Ltd. | 131630 |
104 |
| Lumileds LLC | 1827 |
88 |
| Seoul Semiconductor Co., Ltd. | 1073 |
78 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1710 |
71 |
| Rohm Co., Ltd. | 5843 |
62 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
48 |
| Samsung Display Co., Ltd. | 30585 |
46 |
| LG Chem, Ltd. | 17205 |
42 |
| Dow Corning Toray Co., Ltd. | 562 |
41 |
| Epistar Corporation | 1553 |
40 |
| LG Innotek Co., Ltd. | 6758 |
38 |
| citizen Watch Co., Ltd. | 1062 |
38 |
| Dow Toray Co., Ltd. | 494 |
37 |
| citizen Electronics Co., Ltd. | 378 |
36 |
| Toyoda Gosei Co., Ltd. | 1746 |
35 |
| Lintec Corporation | 1915 |
33 |
| Creeled, Inc. | 748 |
33 |
| Other owners | 1738 |