H01J 19/22
Dispenser-type cathodes
Official title: Dispenser-type cathodes, e.g. L-cathode
H01J19/22 (Dispenser-type cathodes) appears on 1 US grants and 1 published applications in this corpus.
Search patents in H01J- Granted patents
- 1
- Published applications
- 1
- Assignees
- 2
- Inventors
- 8
- Latest grant
- 12 May 2020
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| Year | Granted patents | Published applications |
|---|---|---|
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
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