- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 37/248 - Components associated with high voltage supply
Patent holdings for IPC class H01J 37/248
Total number of patents in this class: 88
10-year publication summary
|
5
|
7
|
10
|
4
|
5
|
12
|
10
|
11
|
9
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi High-Tech Corporation | 4424 |
16 |
| Hitachi High-Technologies Corporation | 2034 |
9 |
| Applied Materials, Inc. | 16587 |
9 |
| Varian Semiconductor Equipment Associates, Inc. | 1282 |
5 |
| ASML Netherlands B.V. | 6816 |
5 |
| Axcelis Technologies, Inc. | 429 |
5 |
| Tokyo Electron Limited | 11599 |
4 |
| Applied Materials Israel, Ltd. | 549 |
3 |
| FEI Company | 851 |
3 |
| Hitachi, Ltd. | 16452 |
2 |
| Schlumberger Technology Corporation | 9690 |
1 |
| Toshiba Medical Systems Corporation | 2236 |
1 |
| Hitachi High-Tech Science Corporation | 326 |
1 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
1 |
| Lam Research Corporation | 4775 |
1 |
| Hamamatsu Photonics K.K. | 4161 |
1 |
| Advanced Energy Industries, Inc. | 403 |
1 |
| ASM America, Inc. | 120 |
1 |
| Deutsches Institut fur Lebensmitteltechnik e.V. | 57 |
1 |
| Eagle Harbor Technologies, Inc. | 74 |
1 |
| Other owners | 17 |