- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 21/8239 - Memory structures
Patent holdings for IPC class H01L 21/8239
Total number of patents in this class: 659
10-year publication summary
|
24
|
75
|
125
|
95
|
75
|
45
|
38
|
3
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TDK Corporation | 6910 |
115 |
| Semiconductor Energy Laboratory Co., Ltd. | 11855 |
68 |
| Sony Semiconductor Solutions Corporation | 11717 |
60 |
| Micron Technology, Inc. | 27636 |
56 |
| Tohoku University | 3007 |
36 |
| Samsung Electronics Co., Ltd. | 158442 |
23 |
| NEC Corporation | 37168 |
23 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48560 |
22 |
| Sandisk Technologies Inc. | 5466 |
14 |
| Unisantis Electronics Singapore Pte. Ltd. | 664 |
13 |
| Renesas Electronics Corporation | 5862 |
11 |
| National Institute of Advanced Industrial Science and Technology | 3790 |
11 |
| Kioxia Corporation | 10856 |
11 |
| SK Hynix Inc. | 12582 |
10 |
| Macronix International Co., Ltd. | 2493 |
10 |
| Hewlett-Packard Development Company, L.P. | 25170 |
9 |
| Changxin Memory Technologies, Inc. | 4933 |
8 |
| Institute of Microelectronics, Chinese Academy of Sciences | 1465 |
6 |
| International Business Machines Corporation | 62748 |
5 |
| Sony Corporation | 30111 |
4 |
| Other owners | 144 |