- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 37/24 - Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
Patent holdings for IPC class H01J 37/24
Total number of patents in this class: 390
10-year publication summary
|
23
|
31
|
31
|
49
|
32
|
27
|
28
|
28
|
31
|
23
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi High-Tech Corporation | 5941 |
60 |
| Hitachi High-Technologies Corporation | 1987 |
38 |
| ASML Netherlands B.V. | 7987 |
36 |
| NuFlare Technology, Inc. | 927 |
25 |
| Varian Semiconductor Equipment Associates, Inc. | 1180 |
12 |
| FEI Company | 1061 |
12 |
| Carl Zeiss Microscopy GmbH | 1286 |
11 |
| Applied Materials, Inc. | 20514 |
10 |
| Tokyo Electron Limited | 13884 |
9 |
| JEOL Ltd. | 625 |
7 |
| Carl Zeiss MultiSEM GmbH | 189 |
7 |
| Applied Materials Israel, Ltd. | 688 |
6 |
| Advanced Energy Industries, Inc. | 476 |
6 |
| Axcelis Technologies, Inc. | 422 |
5 |
| AES Global Holdings, Pte. Ltd. | 406 |
5 |
| Tetra Laval Holdings & Finance S.A. | 2246 |
4 |
| Samsung Electronics Co., Ltd. | 158605 |
3 |
| Advantest Corporation | 1680 |
3 |
| Advanced Biotechnologies, LLC. | 7 |
3 |
| Eagle Harbor Technologies, Inc. | 83 |
3 |
| Other owners | 125 |