- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 29/94 - Selection of substances for gas fillingsMeans for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
Patent holdings for IPC class H01J 29/94
Total number of patents in this class: 15
10-year publication summary
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0
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1
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2
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0
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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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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Massachusetts Institute of Technology | 10036 |
2 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6270 |
2 |
| E. I. du Pont de Nemours and Company | 4095 |
1 |
| Honeywell International Inc. | 13525 |
1 |
| Panasonic Corporation | 20136 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10924 |
1 |
| Brown University | 644 |
1 |
| IPG Photonics Corporation | 527 |
1 |
| LightLab Sweden AB | 38 |
1 |
| Nanyang Technological University | 1996 |
1 |
| Siemens Concentrated Solar Power Ltd. | 49 |
1 |
| Toshiba Materials Co., Ltd. | 662 |
1 |
| US Electron, Inc. | 2 |
1 |
| Other owners | 0 |