H01J 21/12
Tubes with variable amplification factor
H01J21/12 (Tubes with variable amplification factor) appears on 1 US grants and 1 published applications in this corpus.
Search patents in H01J- Granted patents
- 1
- Published applications
- 1
- Assignees
- 1
- Inventors
- 1
- Latest grant
- 19 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year.
Recent patents
Most cited
By later US patents
No patent in this class has been cited by a later US patent yet.