Shift gate, sliding cam system and camshaft
US-2022341351-A1 · Oct 27, 2022 · US
Auxiliary actuators for variable valve timing
Auxiliary actuators for variable valve timing · 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 | F01L2013/10 |
| Official title | {Auxiliary actuators for variable valve timing} |
| Display label | Auxiliary actuators for variable valve timing |
| Total patents | 75 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 7 |
| 2018 | 7 |
| 2019 | 10 |
| 2020 | 20 |
| 2021 | 11 |
| 2022 | 6 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of two-step VVL lift malfunction avoidance learning control and electric two-step VVL system thereof
US-11313288-B2 · Apr 26, 2022 · US
Continuous variable valve duration apparatus and engine provided with the same
US-11313258-B2 · Apr 26, 2022 · US
Deceleration cylinder cut-off with sliding cam
US-2021372332-A1 · Dec 2, 2021 · US
Charge changing control device, reciprocating engine and method for operating a charge changing control device
US-11187118-B2 · Nov 30, 2021 · US
Valve train assembly
US-2021317760-A1 · Oct 14, 2021 · US
Electro-mechanical variable valve mechanism, control unit for variable valve mechanism, electro-mechanical variable valve system and control method thereof
US-11143065-B2 · Oct 12, 2021 · US
Method for compensating a gas spring effect during cylinder shut-off with exhaust gas trapping
US-11085379-B2 · Aug 10, 2021 · US
Valvetrain for an internal combustion engine, in particular of a motor vehicle
US-11073052-B2 · Jul 27, 2021 · US
Ball engine brake mechanism
US-11022008-B2 · Jun 1, 2021 · US
Method for knock mitigation
US-11022049-B1 · Jun 1, 2021 · US
System and method to reduce engine hydrocarbon emissions
US-10954869-B1 · Mar 23, 2021 · US
Continuous Variable Valve Duration Apparatus and Engine Provided with the Same
US-2021062691-A1 · Mar 4, 2021 · US
Method of two-step vvl lift malfunction avoidance learning control and electric two-step vvl system thereof
US-2021010431-A1 · Jan 14, 2021 · US
Charge changing control device, reciprocating engine and method for operating a charge changing control device
US-2020355098-A1 · Nov 12, 2020 · US
Valve train arrangement including engine brake system and lost-motion hydraulic lash adjuster
US-10823018-B1 · Nov 3, 2020 · US
Continuously variable valve duration system and operating method thereof
US-10823089-B2 · Nov 3, 2020 · US
Coupling assembly for switchable lever
US-10815840-B2 · Oct 27, 2020 · US
Valvetrain for an Internal Combustion Engine, in Particular of a Motor Vehicle
US-2020325804-A1 · Oct 15, 2020 · US
Valve drive device
US-10794233-B2 · Oct 6, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01L2013/10?
- CPC F01L2013/10 is the Cooperative Patent Classification code for “Auxiliary actuators for variable valve timing.”
- How many patents are filed under CPC F01L2013/10 (Auxiliary actuators for variable valve timing)?
- Our database includes 75 publications tagged with this CPC code.
- Is patent activity under CPC F01L2013/10 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).