- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 61/22 - Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent vapour of an alkali metal
Patent holdings for IPC class H01J 61/22
Total number of patents in this class: 16
10-year publication summary
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4
|
1
|
0
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4
|
0
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0
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0
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0
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0
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0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hgci, Inc. | 869 |
5 |
| Iwasaki Electric Co., Ltd. | 151 |
2 |
| General Electric Company | 18133 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
| Koninklijke Philips Electronics N.V. | 13133 |
1 |
| OSRAM GmbH | 2442 |
1 |
| Japan Nuclear Cycle Development Institute | 4 |
1 |
| Lumileds LLC | 1827 |
1 |
| Universidad Complutense de Madrid Rectorado | 3 |
1 |
| Patent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH | 8 |
1 |
| Cosmo Holdings Co.,Ltd. | 13 |
1 |
| Other owners | 0 |