- 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: 876
10-year publication summary
|
6
|
2
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Micron Technology, Inc. | 27626 |
122 |
| Semiconductor Energy Laboratory Co., Ltd. | 11797 |
110 |
| Hewlett-Packard Development Company, L.P. | 25216 |
45 |
| Intel Corporation | 47102 |
43 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6181 |
29 |
| Spansion LLC | 208 |
28 |
| Tokyo Electron Limited | 13796 |
27 |
| Hewlett Packard Enterprise Development LP | 11042 |
26 |
| Samsung Electronics Co., Ltd. | 157557 |
18 |
| Sandisk Technologies Inc. | 5432 |
18 |
| Applied Materials, Inc. | 20363 |
15 |
| Floadia Corporation | 80 |
14 |
| SanDisk Corporation | 236 |
13 |
| Kioxia Corporation | 10805 |
12 |
| Panasonic Corporation | 19060 |
10 |
| NEC Corporation | 36934 |
9 |
| SanDisk 3D LLC | 255 |
9 |
| Crossbar, Inc. | 241 |
9 |
| Freescale Semiconductor, Inc. | 797 |
8 |
| Industry-University Cooperation Foundation Hanyang University | 1010 |
8 |
| Other owners | 303 |