System for deactivating engine cylinders
US-2017356355-A1 · Dec 14, 2017 · US
Deactivating cylinders
Deactivating cylinders · 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 | F01L2013/001 |
| Official title | {Deactivating cylinders} |
| Display label | Deactivating cylinders |
| Total patents | 611 |
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 | 17 |
| 2016 | 35 |
| 2017 | 63 |
| 2018 | 67 |
| 2019 | 80 |
| 2020 | 95 |
| 2021 | 77 |
| 2022 | 70 |
| 2023 | 38 |
| 2024 | 42 |
| 2025 | 26 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and method for improving cylinder deactivation
US-2017356375-A1 · Dec 14, 2017 · US
V engine having valve property varying mechanism
US-2017350324-A1 · Dec 7, 2017 · US
Axial cam shifting valve assembly with additional discrete valve event
US-2017321575-A1 · Nov 9, 2017 · US
Valve lift assembly for a cam-in-block engine
US-2017298791-A1 · Oct 19, 2017 · US
Hydraulic circuit for valve deactivation
US-9765656-B2 · Sep 19, 2017 · US
Custom vva rocker arms for left hand and right hand orientations
US-2017248073-A1 · Aug 31, 2017 · US
Cylinder deactivation deactivating roller finger follower having improved packaging
US-2017074128-A1 · Mar 16, 2017 · US
Method and system for an engine
US-2016369710-A1 · Dec 22, 2016 · US
Hydraulic circuit for valve deactivation
US-2016363012-A1 · Dec 15, 2016 · US
Multiple variable valve lift apparatus
US-2016363011-A1 · Dec 15, 2016 · US
Cylinder deactivation engine
US-2016363013-A1 · Dec 15, 2016 · US
Method of fuel injection for a variable displacement engine
US-9506408-B2 · Nov 29, 2016 · US
Controller for variable valve mechanism
US-9500141-B2 · Nov 22, 2016 · US
Control system for engine
US-9500107-B2 · Nov 22, 2016 · US
Hydraulic supply device for valve stopping mechanism
US-2016319707-A1 · Nov 3, 2016 · US
Switchable finger follower with lost motion spring lost stroke minimizer
US-2016312666-A1 · Oct 27, 2016 · US
Variable valve mechanism of internal combustion engine
US-2016312669-A1 · Oct 27, 2016 · US
Variable-stroke valve train of an internal combustion engine
US-2016290183-A1 · Oct 6, 2016 · US
Cylinder activation and deactivation control systems and methods
US-9458778-B2 · Oct 4, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01L2013/001?
- CPC F01L2013/001 is the Cooperative Patent Classification code for “Deactivating cylinders.”
- How many patents are filed under CPC F01L2013/001 (Deactivating cylinders)?
- Our database includes 611 publications tagged with this CPC code.
- Is patent activity under CPC F01L2013/001 growing?
- Publication counts under this code: 42 in 2024 vs 26 in 2025 (latest complete years).