Circuit breakers with back-feed protection
US-2017358916-A1 · Dec 14, 2017 · US
responsive to reversal of direct current
responsive to reversal of direct current · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02H3/18 |
| Official title | responsive to reversal of direct current |
| Display label | responsive to reversal of direct current |
| Total patents | 289 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 22 |
| 2016 | 27 |
| 2017 | 31 |
| 2018 | 20 |
| 2019 | 33 |
| 2020 | 19 |
| 2021 | 31 |
| 2022 | 26 |
| 2023 | 21 |
| 2024 | 23 |
| 2025 | 27 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electronic Device with Reverse Voltage Protection Circuitry for Multiple Control Lines
US-2017288392-A1 · Oct 5, 2017 · US
Method and apparatus for protecting a polarity sensitive load
US-2017271862-A1 · Sep 21, 2017 · US
Multiple sensors with one sensor affecting a second sensor's output or interpretation
US-9757128-B2 · Sep 12, 2017 · US
Monitoring device degradation based on component evaluation
US-9737301-B2 · Aug 22, 2017 · US
Powered medical device including measurement of closure state of jaws
US-2017209145-A1 · Jul 27, 2017 · US
Reverse battery protection for battery-powered devices
US-9673612-B2 · Jun 6, 2017 · US
Protection system against reverse battery connection
US-9653907-B2 · May 16, 2017 · US
Reverse battery protection device and operating method thereof
US-9595822-B2 · Mar 14, 2017 · US
Reverse Current Protection Circuit
US-2017047731-A1 · Feb 16, 2017 · US
Reverse current detector circuit
US-9535101-B2 · Jan 3, 2017 · US
Electronic Device Power Protection Circuitry
US-2016320788-A1 · Nov 3, 2016 · US
Safety system
US-9461459-B2 · Oct 4, 2016 · US
Connector leakage protection system and circuit
US-2016285253-A1 · Sep 29, 2016 · US
Output power protection apparatus and method of operating the same
US-9425612-B2 · Aug 23, 2016 · US
Reverse battery protection for battery-powered devices
US-2016241015-A1 · Aug 18, 2016 · US
Apparatus and method for reverse battery protection
US-2016241013-A1 · Aug 18, 2016 · US
Sensor Device
US-2016241014-A1 · Aug 18, 2016 · US
Protection device for DC collection systems
US-9419428-B2 · Aug 16, 2016 · US
Jump Starter Auto Safety Jumper Module
US-2016233662-A1 · Aug 11, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02H3/18?
- CPC H02H3/18 is the Cooperative Patent Classification code for “responsive to reversal of direct current.”
- How many patents are filed under CPC H02H3/18 (responsive to reversal of direct current)?
- Our database includes 289 publications tagged with this CPC code.
- Is patent activity under CPC H02H3/18 growing?
- Publication counts under this code: 23 in 2024 vs 27 in 2025 (latest complete years).