- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 37/04 - Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement, ion-optical arrangement
Patent holdings for IPC class H01J 37/04
Total number of patents in this class: 617
10-year publication summary
|
46
|
41
|
55
|
40
|
49
|
37
|
45
|
45
|
42
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NuFlare Technology, Inc. | 898 |
117 |
| ASML Netherlands B.V. | 7673 |
69 |
| FEI Company | 1021 |
37 |
| Hitachi High-Tech Corporation | 5578 |
35 |
| Hitachi High-Technologies Corporation | 1993 |
27 |
| Applied Materials, Inc. | 19717 |
21 |
| Mapper Lithography IP B.V. | 132 |
19 |
| KLA Corporation | 1754 |
13 |
| Carl Zeiss MultiSEM GmbH | 160 |
13 |
| Intel Corporation | 46583 |
10 |
| IMS Nanofabrication GmbH | 60 |
9 |
| Hitachi, Ltd. | 15819 |
8 |
| Axcelis Technologies, Inc. | 430 |
8 |
| Carl Zeiss Microscopy GmbH | 1242 |
8 |
| ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH | 155 |
8 |
| JEOL Ltd. | 614 |
8 |
| Lam Research Corporation | 5452 |
7 |
| KLA-Tencor Corporation | 2525 |
7 |
| Varian Semiconductor Equipment Associates, Inc. | 1211 |
6 |
| Tokyo Electron Limited | 13410 |
6 |
| Other owners | 181 |