- 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: 597
10-year publication summary
46
|
46
|
41
|
55
|
40
|
51
|
38
|
46
|
45
|
25
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
NuFlare Technology, Inc. | 839 |
109 |
ASML Netherlands B.V. | 7361 |
69 |
Hitachi High-Tech Corporation | 5282 |
33 |
FEI Company | 941 |
32 |
Hitachi High-Technologies Corporation | 2004 |
27 |
Mapper Lithography IP B.V. | 135 |
19 |
Applied Materials, Inc. | 18530 |
18 |
KLA Corporation | 1532 |
11 |
Carl Zeiss MultiSEM GmbH | 131 |
11 |
Intel Corporation | 46949 |
10 |
IMS Nanofabrication GmbH | 59 |
9 |
Hitachi, Ltd. | 15459 |
8 |
Axcelis Technologies, Inc. | 407 |
8 |
Carl Zeiss Microscopy GmbH | 1202 |
8 |
ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH | 158 |
8 |
JEOL Ltd. | 578 |
8 |
Lam Research Corporation | 5217 |
7 |
KLA-Tencor Corporation | 2545 |
7 |
Varian Semiconductor Equipment Associates, Inc. | 1231 |
6 |
Tokyo Electron Limited | 12645 |
6 |
Other owners | 183 |