Ultraviolet irradiation device
US-2022409755-A1 · Dec 29, 2022 · US
by an external electromagnetic field
by an external electromagnetic field · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01J65/042 |
| Official title | {by an external electromagnetic field} |
| Display label | by an external electromagnetic field |
| Total patents | 82 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 8 |
| 2017 | 9 |
| 2018 | 11 |
| 2019 | 9 |
| 2020 | 5 |
| 2021 | 5 |
| 2022 | 9 |
| 2023 | 11 |
| 2024 | 5 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Excimer lamp
US-11508568-B2 · Nov 22, 2022 · US
Device for emitting ultraviolet light
US-2022285145-A1 · Sep 8, 2022 · US
External electrode fluorescent lamp and home appliance including the same
US-2022285144-A1 · Sep 8, 2022 · US
Device for emitting ultraviolet light
US-11373854-B2 · Jun 28, 2022 · US
Single-dielectric excimer lamp systems and methods
US-11338052-B2 · May 24, 2022 · US
A phosphor for a uv emitting device and a uv generating device utilizing such a phosphor
US-2022076940-A1 · Mar 10, 2022 · US
Device for emitting ultraviolet light
US-2022068627-A1 · Mar 3, 2022 · US
Ultraviolet excimer lamp systems and methods
US-2021393825-A1 · Dec 23, 2021 · US
Single-dielectric excimer lamp systems and methods
US-2021393837-A1 · Dec 23, 2021 · US
Excimer lamp
US-2021398792-A1 · Dec 23, 2021 · US
System and method for pumping laser sustained plasma with interlaced pulsed illumination sources
US-11121521-B2 · Sep 14, 2021 · US
Light transmissive material and lamp, and gas treatment device and gas treatment method
US-2021245100-A1 · Aug 12, 2021 · US
System for portable gas storage and delivery
US-2020294785-A1 · Sep 17, 2020 · US
System and Method for Pumping Laser Sustained Plasma with Interlaced Pulsed Illumination Sources
US-2020274314-A1 · Aug 27, 2020 · US
System and method for pumping laser sustained plasma and enhancing selected wavelengths of output illumination
US-10714327-B2 · Jul 14, 2020 · US
High-power short-pass total internal reflection filter
US-10691024-B2 · Jun 23, 2020 · US
Laser sustained plasma light source with forced flow through natural convection
US-10690589-B2 · Jun 23, 2020 · US
Electrodeless lamp system and methods of operation
US-10475636-B2 · Nov 12, 2019 · US
System and Method for Pumping Laser Sustained Plasma and Enhancing Selected Wavelengths of Output Illumination
US-2019287785-A1 · Sep 19, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01J65/042?
- CPC H01J65/042 is the Cooperative Patent Classification code for “by an external electromagnetic field.”
- How many patents are filed under CPC H01J65/042 (by an external electromagnetic field)?
- Our database includes 82 publications tagged with this CPC code.
- Is patent activity under CPC H01J65/042 growing?
- Publication counts under this code: 5 in 2024 vs 5 in 2025 (latest complete years).