- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 47/04 - Capacitive ionisation chambers, e.g. the electrodes of which are used as electrometers
Patent holdings for IPC class H01J 47/04
Total number of patents in this class: 8
10-year publication summary
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1
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0
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0
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0
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2
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0
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0
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1
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0
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1
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dai Nippon Printing Co., Ltd. | 3891 |
2 |
| Siemens AG | 24990 |
1 |
| Atomic Energy of Canada Limited - Energie Atomique du Canada, Limitee | 38 |
1 |
| INFICON Aktiengesellschaft | 2 |
1 |
| Sumitomo Heavy Industries, Ltd. | 1670 |
1 |
| Universita degli Studi di Salerno | 53 |
1 |
| Atomic Energy of Canada Limited / Énergie Atomique du Canada limitée | 97 |
1 |
| Other owners | 0 |