- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 41/02 - Discharge tubes and means integral therewith for measuring gas pressure
Patent holdings for IPC class H01J 41/02
Total number of patents in this class: 19
10-year publication summary
|
3
|
3
|
2
|
0
|
1
|
0
|
2
|
0
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MKS Instruments, Inc. | 684 |
5 |
| INFICON AG | 23 |
2 |
| Northeastern University | 1136 |
2 |
| General Electric Company | 17789 |
1 |
| Tokyo Electron Limited | 12115 |
1 |
| Aerojet Rocketdyne, Inc. | 162 |
1 |
| INFICON Aktiengesellschaft | 2 |
1 |
| INFICON GmbH | 44 |
1 |
| JEOL Ltd. | 562 |
1 |
| Metrolab | 25 |
1 |
| Chemring Sensors and Electronic Systems, Inc. | 35 |
1 |
| NXP B.V. | 2169 |
1 |
| GSI Helmholtzzentrum für Schwerionenforschung GmbH | 85 |
1 |
| Other owners | 0 |