Static eliminator and ion balance control method
US-2024079857-A1 · Mar 7, 2024 · US
by means of spark gaps or other discharge devices (devices providing for corona discharge per se H01T19/00)
by means of spark gaps or other discharge devices (devices providing for corona discharge per se H01T19/00) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H05F3/04 |
| Official title | by means of spark gaps or other discharge devices (devices providing for corona discharge per se H01T19/00) |
| Display label | by means of spark gaps or other discharge devices (devices providing for corona discharge per se H01T19/00) |
| Total patents | 297 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 30 |
| 2017 | 33 |
| 2018 | 31 |
| 2019 | 29 |
| 2020 | 35 |
| 2021 | 31 |
| 2022 | 26 |
| 2023 | 11 |
| 2024 | 29 |
| 2025 | 25 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Complex electronic component and method for manufacturing the same
US-2017374727-A1 · Dec 28, 2017 · US
Flat-panel-display, bottom-side, electrostatic-dissipation
US-9839106-B2 · Dec 5, 2017 · US
Flowing-fluid X-ray induced ionic electrostatic dissipation
US-9839107-B2 · Dec 5, 2017 · US
Electrostatic-dissipation device
US-9826610-B2 · Nov 21, 2017 · US
ESD protection device
US-9826611-B2 · Nov 21, 2017 · US
Ionizer
US-9812847-B2 · Nov 7, 2017 · US
Control of discharge in high voltage fluid insulation
US-2017303377-A1 · Oct 19, 2017 · US
Discharge method and circuit for usb connector
US-2017290134-A1 · Oct 5, 2017 · US
Apparatus and methods for transferring a tissue section
US-2017284904-A1 · Oct 5, 2017 · US
Spark gap X-ray source
US-9779847-B2 · Oct 3, 2017 · US
Discharge apparatus and display panel preparation system based thereon
US-9775224-B2 · Sep 26, 2017 · US
High voltage generation circuit
US-2017257036-A1 · Sep 7, 2017 · US
Flowing-Fluid X-ray Induced Ionic Electrostatic Dissipation
US-2017127504-A1 · May 4, 2017 · US
Touch panel, touch display device and method for manufacturing the touch panel
US-9572238-B2 · Feb 14, 2017 · US
Spark gap x-ray source
US-2017040079-A1 · Feb 9, 2017 · US
Anti-static method, anti-static device and flat display manufacturing equipment
US-2016374186-A1 · Dec 22, 2016 · US
ESD protection device
US-9516728-B2 · Dec 6, 2016 · US
Esd protection device and common mode choke coil with built-in esd protection device
US-2016351327-A1 · Dec 1, 2016 · US
Electrostatic protection device
US-9497837-B2 · Nov 15, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H05F3/04?
- CPC H05F3/04 is the Cooperative Patent Classification code for “by means of spark gaps or other discharge devices (devices providing for corona discharge per se H01T19/00).”
- How many patents are filed under CPC H05F3/04 (by means of spark gaps or other discharge devices (devices providing for corona discharge per se H01T19/00))?
- Our database includes 297 publications tagged with this CPC code.
- Is patent activity under CPC H05F3/04 growing?
- Publication counts under this code: 29 in 2024 vs 25 in 2025 (latest complete years).