- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 37/065 - Construction of guns or parts thereof
Patent holdings for IPC class H01J 37/065
Total number of patents in this class: 142
10-year publication summary
|
9
|
10
|
14
|
9
|
8
|
10
|
11
|
9
|
11
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ASML Netherlands B.V. | 7573 |
25 |
| Hitachi High-Tech Corporation | 5455 |
10 |
| NuFlare Technology, Inc. | 881 |
8 |
| KLA-Tencor Corporation | 2539 |
6 |
| Hitachi High-Technologies Corporation | 1996 |
5 |
| Advantest Corporation | 1768 |
4 |
| Mapper Lithography IP B.V. | 132 |
4 |
| Nikon Metrology, NV | 66 |
3 |
| Hamamatsu Photonics K.K. | 4485 |
3 |
| 38th Research Institute, China Electronics Technology Group Corporation | 52 |
3 |
| Denka Company Limited | 2650 |
3 |
| Denki Kagaku Kogyo Kabushiki Kaisha | 619 |
3 |
| Paton Turbine Technologies LLC | 3 |
3 |
| Freemelt AB | 38 |
3 |
| Applied Physics Technologies, Inc. | 14 |
2 |
| Arcam AB | 202 |
2 |
| ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH | 155 |
2 |
| Param Corporation | 8 |
2 |
| Titanium Metals Corporation | 81 |
2 |
| ULVAC, Inc. | 1374 |
2 |
| Other owners | 47 |