System and method for operating an engine that includes a fuel vapor canister
US-2018347485-A1 · Dec 6, 2018 · US
Electromagnets
Electromagnets · 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 | F01L2013/101 |
| Official title | {Electromagnets} |
| Display label | Electromagnets |
| Total patents | 300 |
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 | 9 |
| 2016 | 7 |
| 2017 | 28 |
| 2018 | 48 |
| 2019 | 59 |
| 2020 | 49 |
| 2021 | 34 |
| 2022 | 30 |
| 2023 | 14 |
| 2024 | 15 |
| 2025 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Three step cam defaulting strategy for engine position sensors
US-2018340484-A1 · Nov 29, 2018 · US
Multiple variable valve lift apparatus
US-2018334933-A1 · Nov 22, 2018 · US
Control device for internal combustion engine
US-2018306069-A1 · Oct 25, 2018 · US
Valve drive for an internal combustion engine
US-2018283226-A1 · Oct 4, 2018 · US
Valve drive for an internal combustion engine
US-2018283240-A1 · Oct 4, 2018 · US
Valve drive for an internal combustion engine
US-2018283237-A1 · Oct 4, 2018 · US
Valve drive for an internal combustion engine
US-2018283238-A1 · Oct 4, 2018 · US
Variable valve mechanism
US-10041383-B2 · Aug 7, 2018 · US
Valve train for an internal combustion engine
US-2018216505-A1 · Aug 2, 2018 · US
Valvetrain with rocker arm housing magnetic latch
US-2018195419-A1 · Jul 12, 2018 · US
Variable valve mechanism for engine
US-2018179921-A1 · Jun 28, 2018 · US
Exhaust Valve Deactivation
US-2018163583-A1 · Jun 14, 2018 · US
Sliding Contact For Electrically Actuated Rocker Arm
US-2018142583-A1 · May 24, 2018 · US
System and method for controlling valve timing of continuous variable valve duration engine
US-2018100447-A1 · Apr 12, 2018 · US
Development of a switching roller finger follower for cylinder deactivation in internal combustion engines
US-2018045089-A1 · Feb 15, 2018 · US
Valve train for an internal combustion engine
US-2017362970-A1 · Dec 21, 2017 · US
Switchable valve train rocker shaft
US-2017350280-A1 · Dec 7, 2017 · US
Multiple variable valve lift apparatus
US-9816406-B2 · Nov 14, 2017 · US
Shifting camshaft groove design for load reduction
US-9777603-B2 · Oct 3, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01L2013/101?
- CPC F01L2013/101 is the Cooperative Patent Classification code for “Electromagnets.”
- How many patents are filed under CPC F01L2013/101 (Electromagnets)?
- Our database includes 300 publications tagged with this CPC code.
- Is patent activity under CPC F01L2013/101 growing?
- Publication counts under this code: 15 in 2024 vs 7 in 2025 (latest complete years).