- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 21/331 - Transistors
Patent holdings for IPC class H01L 21/331
Total number of patents in this class: 892
10-year publication summary
|
69
|
33
|
31
|
22
|
19
|
14
|
24
|
31
|
28
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Csmc Technologies Fab2 Co., Ltd. | 664 |
35 |
| GLOBALFOUNDRIES U.S. Inc. | 6459 |
34 |
| Texas Instruments Incorporated | 19376 |
30 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
29 |
| Murata Manufacturing Co., Ltd. | 22355 |
28 |
| NXP B.V. | 2185 |
25 |
| Sumitomo Chemical Company, Limited | 8808 |
23 |
| Samsung Electronics Co., Ltd. | 131630 |
16 |
| International Business Machines Corporation | 60644 |
16 |
| Micron Technology, Inc. | 24960 |
15 |
| Nippon Telegraph and Telephone Corporation | 14195 |
15 |
| Shenzhen Xinguodu Technology Co., Ltd. | 2467 |
15 |
| National Semiconductor Corporation | 1411 |
13 |
| Cree, Inc. | 1157 |
12 |
| Morgan Stanley Senior Funding, Inc., AS Agent | 1727 |
12 |
| Semiconductor Components Industries, L.L.C. | 5345 |
11 |
| NXP USA, Inc. | 4155 |
11 |
| Huawei Technologies Co., Ltd. | 100781 |
9 |
| Fuji Electric Co., Ltd. | 4750 |
9 |
| Infineon Technologies AG | 8189 |
8 |
| Other owners | 526 |