- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 21/18 - Tubes with a single discharge path having both magnetic and electrostatic control means
Patent holdings for IPC class H01J 21/18
Total number of patents in this class: 8
10-year publication summary
|
1
|
1
|
1
|
0
|
0
|
0
|
0
|
0
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Varian Semiconductor Equipment Associates, Inc. | 1282 |
1 |
| Tokyo Electron Limited | 11599 |
1 |
| Massachusetts Institute of Technology | 9795 |
1 |
| ColdQuanta, Inc., AKA ColdQuanta | 142 |
1 |
| AP Novelty Pte. Ltd. | 1 |
1 |
| Balakin, Andrey Vladimirovich | 65 |
1 |
| Balakin, Pavel Vladimirovich | 65 |
1 |
| Vacon Ltd. | 2 |
1 |
| Other owners | 0 |