- 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: 309
10-year publication summary
|
37
|
13
|
23
|
31
|
31
|
49
|
32
|
23
|
23
|
9
|
| 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 |
47 |
| Hitachi High-Technologies Corporation | 2034 |
38 |
| NuFlare Technology, Inc. | 770 |
21 |
| ASML Netherlands B.V. | 6816 |
19 |
| Varian Semiconductor Equipment Associates, Inc. | 1282 |
12 |
| Carl Zeiss Microscopy GmbH | 1146 |
8 |
| FEI Company | 851 |
8 |
| Tokyo Electron Limited | 11599 |
7 |
| JEOL Ltd. | 556 |
7 |
| Applied Materials Israel, Ltd. | 549 |
6 |
| Applied Materials, Inc. | 16587 |
5 |
| AES Global Holdings, Pte. Ltd. | 139 |
5 |
| Axcelis Technologies, Inc. | 429 |
4 |
| Tetra Laval Holdings & Finance S.A. | 2007 |
4 |
| Carl Zeiss MultiSEM GmbH | 85 |
4 |
| Advantest Corporation | 1939 |
3 |
| Advanced Biotechnologies, LLC. | 7 |
3 |
| Advanced Energy Industries, Inc. | 403 |
3 |
| Eagle Harbor Technologies, Inc. | 74 |
3 |
| Mapper Lithography IP B.V. | 136 |
3 |
| Other owners | 99 |