- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 21/8247 - Read-only memory structures (ROM) electrically-programmable (EPROM)
Patent holdings for IPC class H01L 21/8247
Total number of patents in this class: 1019
10-year publication summary
|
70
|
6
|
2
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Micron Technology, Inc. | 25845 |
135 |
| Semiconductor Energy Laboratory Co., Ltd. | 11114 |
113 |
| Spansion LLC | 359 |
54 |
| Intel Corporation | 46153 |
46 |
| Hewlett-Packard Development Company, L.P. | 27447 |
45 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6243 |
32 |
| Tokyo Electron Limited | 12127 |
30 |
| Hewlett Packard Enterprise Development LP | 10650 |
26 |
| Samsung Electronics Co., Ltd. | 139302 |
21 |
| Sandisk Technologies Inc. | 4948 |
20 |
| SanDisk Corporation | 386 |
19 |
| SPANSION Japan Limited | 60 |
18 |
| Applied Materials, Inc. | 17779 |
15 |
| NEC Corporation | 34467 |
14 |
| Floadia Corporation | 75 |
14 |
| Kioxia Corporation | 10128 |
13 |
| SanDisk 3D LLC | 295 |
12 |
| Panasonic Corporation | 20313 |
10 |
| Crossbar, Inc. | 221 |
9 |
| Tohoku University | 2689 |
9 |
| Other owners | 364 |