Traveling wave tube
US-12444566-B2 · Oct 14, 2025 · US
This page is not indexed by search engines while we improve data quality.
Electron or ion guns
Electron or ion guns · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01J23/06 |
| Official title | Electron or ion guns |
| Display label | Electron or ion guns |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 7 |
| 2020 | 1 |
| 2023 | 2 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electron gun and vacuum electronic device
US-2025095945-A1 · Mar 20, 2025 · US
Travelling-Wave Tube, Electron Gun, and Power Amplification System
US-2025070736-A1 · Feb 27, 2025 · US
Technique for multi-stream electron beam generation with different energies and comparable currents from a single cathode potential for high power microwave sources
US-2023420212-A1 · Dec 28, 2023 · US
Traveling wave tube
US-2023343542-A1 · Oct 26, 2023 · US
Methods and devices for producing an electron beam
US-10727022-B2 · Jul 28, 2020 · US
Apparatus and methods for generating and enhancing Smith-Purcell radiation
US-10505334-B2 · Dec 10, 2019 · US
Equilibration of a multibeam inductive output tube
US-10490383-B2 · Nov 26, 2019 · US
Methods and devices for producing an electron beam
US-2019272968-A1 · Sep 5, 2019 · US
Electron gun thermal dissipation in a vacuum
US-10403465-B2 · Sep 3, 2019 · US
Electron gun adjustment in a vacuum
US-10395880-B2 · Aug 27, 2019 · US
Electron gun adjustment in a vacuum
US-2019057830-A1 · Feb 21, 2019 · US
Electron gun thermal dissipation in a vacuum
US-2019057829-A1 · Feb 21, 2019 · US
Electron beam modulator based on a nonlinear transmission line
US-10109447-B1 · Oct 23, 2018 · US
Equilibration of a multibeam inductive output tube
US-2018294132-A1 · Oct 11, 2018 · US
Apparatus and methods for generating and enhancing smith-purcell radiation
US-2018287329-A1 · Oct 4, 2018 · US
Nonlinear transmission line based electron beam density modulator
US-9685296-B1 · Jun 20, 2017 · US
Electron emission device and reflex klystron with the same
US-9305738-B2 · Apr 5, 2016 · US
Electron emission device and reflex klystron with the same
US-2015380199-A1 · Dec 31, 2015 · US
Compact high-voltage electron gun
US-8957394-B2 · Feb 17, 2015 · US