- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 41/18 - Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of cold cathodes
Patent holdings for IPC class H01J 41/18
Total number of patents in this class: 10
10-year publication summary
|
2
|
2
|
1
|
2
|
0
|
0
|
2
|
1
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| National Institute of Information and Communications Technology | 594 |
4 |
| ColdQuanta, Inc., AKA ColdQuanta | 142 |
3 |
| Hamilton Sundstrand Corporation | 4525 |
1 |
| National Institute of Advanced Industrial Science and Technology | 3677 |
1 |
| APR Technologies AB | 3 |
1 |
| Other owners | 0 |