Charged particle optics components and their fabrication
US-12525422-B2 · Jan 13, 2026 · US
Control electrodes, e.g. grid (for igniting arrangements H01J7/30); Auxiliary electrodes (auxiliary anodes for maintaining a discharge H01J1/36)
Control electrodes, e.g. grid (for igniting arrangements H01J7/30); Auxiliary electrodes (auxiliary anodes for maintaining a discharge H01J1/36) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01J1/46 |
| Official title | Control electrodes, e.g. grid (for igniting arrangements H01J7/30); Auxiliary electrodes (auxiliary anodes for maintaining a discharge H01J1/36) |
| Display label | Control electrodes, e.g. grid (for igniting arrangements H01J7/30); Auxiliary electrodes (auxiliary anodes for maintaining a discharge H01J1/36) |
| Total patents | 30 |
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 | 2 |
| 2018 | 2 |
| 2020 | 5 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 4 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gridded cathode apparatuses and x-ray systems
US-2026011522-A1 · Jan 8, 2026 · US
Field emission device, and x-ray generation device using same
US-2025364204-A1 · Nov 27, 2025 · US
Charged particle gun and charged particle beam system
US-12469664-B2 · Nov 11, 2025 · US
Electron source, electron gun, and charged particle beam device
US-12394585-B2 · Aug 19, 2025 · US
Electron gun using virtual source method
US-2025095944-A1 · Mar 20, 2025 · US
Method for amplifying electromagnetic waves with wirebonded triode
US-2024161995-A1 · May 16, 2024 · US
Charged particle optics components and their fabrication
US-2024047171-A1 · Feb 8, 2024 · US
Electron source, electron gun, and charged particle beam device
US-2023352262-A1 · Nov 2, 2023 · US
Charged particle beam generation
US-2023178326-A1 · Jun 8, 2023 · US
Charged Particle Gun and Charged Particle Beam System
US-2023178325-A1 · Jun 8, 2023 · US
Extreme-ultraviolet light source device using electron beams
US-2023122253-A1 · Apr 20, 2023 · US
Electron-emission device
US-11373835-B2 · Jun 28, 2022 · US
Gas field ionization source
US-11367587-B2 · Jun 21, 2022 · US
Thermionic emission device and method for making the same
US-11195686-B2 · Dec 7, 2021 · US
Thermionic emission device and method for making the same
US-2021217572-A1 · Jul 15, 2021 · US
Electron gun, X-ray generation apparatus, and X-ray imaging apparatus
US-10971322-B2 · Apr 6, 2021 · US
Electron-emission device
US-2021082653-A1 · Mar 18, 2021 · US
Beam position monitors for medical radiation machines
US-10879028-B2 · Dec 29, 2020 · US
Silicon field effect emitter
US-2020388459-A1 · Dec 10, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01J1/46?
- CPC H01J1/46 is the Cooperative Patent Classification code for “Control electrodes, e.g. grid (for igniting arrangements H01J7/30); Auxiliary electrodes (auxiliary anodes for maintaining a discharge H01J1/36).”
- How many patents are filed under CPC H01J1/46 (Control electrodes, e.g. grid (for igniting arrangements H01J7/30); Auxiliary electrodes (auxiliary anodes for maintaining a discharge H01J1/36))?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC H01J1/46 growing?
- Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).