- 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: 1072
10-year publication summary
|
79
|
70
|
6
|
2
|
0
|
0
|
0
|
0
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Micron Technology, Inc. | 24960 |
136 |
| Semiconductor Energy Laboratory Co., Ltd. | 10902 |
114 |
| Spansion LLC | 437 |
64 |
| Intel Corporation | 45621 |
46 |
| Hewlett-Packard Development Company, L.P. | 28538 |
45 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
33 |
| Tokyo Electron Limited | 11599 |
32 |
| SPANSION Japan Limited | 113 |
28 |
| Hewlett Packard Enterprise Development LP | 10702 |
26 |
| SanDisk Corporation | 434 |
23 |
| Samsung Electronics Co., Ltd. | 131630 |
22 |
| NEC Corporation | 32703 |
15 |
| Applied Materials, Inc. | 16587 |
15 |
| Floadia Corporation | 75 |
14 |
| Sandisk Technologies Inc. | 470 |
13 |
| Kioxia Corporation | 9847 |
13 |
| SanDisk 3D LLC | 299 |
12 |
| Panasonic Corporation | 20786 |
10 |
| Macronix International Co., Ltd. | 2562 |
10 |
| Sandisk Technologies LLC | 5684 |
10 |
| Other owners | 391 |