Method and device for extraction of electrons in a vacuum and emission cathodes for said device
US7057333B1 · kind B1 · utility
18Cited by
13References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 2000 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | May 12, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J1/308
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The method of the invention for extracting electrons in a vacuum consists in:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.