Ignition coil control system
US-2022364537-A1 · Nov 17, 2022 · US
Opening or closing the primary coil circuit with semiconductor devices
Opening or closing the primary coil circuit with semiconductor devices · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F02P3/051 |
| Official title | {Opening or closing the primary coil circuit with semiconductor devices} |
| Display label | Opening or closing the primary coil circuit with semiconductor devices |
| Total patents | 79 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 6 |
| 2017 | 7 |
| 2018 | 9 |
| 2019 | 6 |
| 2020 | 12 |
| 2021 | 13 |
| 2022 | 10 |
| 2023 | 9 |
| 2024 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Switch control circuit and igniter
US-11448178-B2 · Sep 20, 2022 · US
System of controlling ignition coil and method thereof
US-2022285921-A1 · Sep 8, 2022 · US
Ignition coil control system and method thereof
US-2022252033-A1 · Aug 11, 2022 · US
Internal combustion engine ignition device
US-2022213858-A1 · Jul 7, 2022 · US
Circuit and method for controlling a coil current during a soft shut down
US-11162469-B2 · Nov 2, 2021 · US
Ignition apparatus for internal combustion engine
US-2021324826-A1 · Oct 21, 2021 · US
Ignition device for internal combustion engine
US-11105311-B2 · Aug 31, 2021 · US
Ignition device for internal combustion engine
US-11098689-B2 · Aug 24, 2021 · US
Ignition device for internal combustion engine
US-2021222665-A1 · Jul 22, 2021 · US
Semiconductor device for internal combustion engine ignition
US-11028814-B2 · Jun 8, 2021 · US
Circuit and method for controlling a coil current during a soft shut down
US-2021131396-A1 · May 6, 2021 · US
Circuit and method for a kickback-limited soft shutdown of a coil
US-2021108605-A1 · Apr 15, 2021 · US
Ignition control system with circulating-current control
US-10975827-B2 · Apr 13, 2021 · US
Ignition apparatus for internal combustion engine
US-2021095631-A1 · Apr 1, 2021 · US
Ignition device for internal combustion engine
US-2021033058-A1 · Feb 4, 2021 · US
Circuit and method for controlling a coil current during a soft shut down
US-10907607-B2 · Feb 2, 2021 · US
Ignition system
US-10883468-B2 · Jan 5, 2021 · US
Switch control circuit and igniter
US-2020408182-A1 · Dec 31, 2020 · US
Circuit and method for controlling a coil current during a soft shut down
US-2020340441-A1 · Oct 29, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02P3/051?
- CPC F02P3/051 is the Cooperative Patent Classification code for “Opening or closing the primary coil circuit with semiconductor devices.”
- How many patents are filed under CPC F02P3/051 (Opening or closing the primary coil circuit with semiconductor devices)?
- Our database includes 79 publications tagged with this CPC code.
- Is patent activity under CPC F02P3/051 growing?
- Publication counts under this code: 4 in 2024 vs 1 in 2025 (latest complete years).