Cylinder head for an internal combustion engine
US-12085037-B2 · Sep 10, 2024 · US
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characterised by the provision of means for rotating lift valves, e.g. to diminish wear
characterised by the provision of means for rotating lift valves, e.g. to diminish wear · 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 | F01L1/32 |
| Official title | characterised by the provision of means for rotating lift valves, e.g. to diminish wear |
| Display label | characterised by the provision of means for rotating lift valves, e.g. to diminish wear |
| Total patents | 19 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 4 |
| 2018 | 8 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cylinder head for an internal combustion engine
US-2023374951-A1 · Nov 23, 2023 · US
Valve rotating device
US-11486276-B2 · Nov 1, 2022 · US
Valve rotating device
US-2021388742-A1 · Dec 16, 2021 · US
Poppet valve for an internal combustion engine
US-10760455-B2 · Sep 1, 2020 · US
Valve rotation device
US-10107148-B2 · Oct 23, 2018 · US
Valve bridge with internal oil transportation
US-10094250-B2 · Oct 9, 2018 · US
Hydraulic lash adjuster
US-10082052-B2 · Sep 25, 2018 · US
Hydraulic Lash Adjuster
US-2018223701-A1 · Aug 9, 2018 · US
Valve actuation system
US-10006317-B2 · Jun 26, 2018 · US
Poppet valve for an internal combustion engine
US-2018171837-A1 · Jun 21, 2018 · US
Valve bridge for valve systems
US-2018094553-A1 · Apr 5, 2018 · US
Valve Bridge with Internal Oil Transportation
US-2018051597-A1 · Feb 22, 2018 · US
Rocker base for valve actuation system
US-9816405-B2 · Nov 14, 2017 · US
Rocker base for valve actuation system
US-2017089224-A1 · Mar 30, 2017 · US
Valve actuation system
US-2017089223-A1 · Mar 30, 2017 · US
Valve rotation device
US-2017058724-A1 · Mar 2, 2017 · US
Cam structure
US-9109471-B2 · Aug 18, 2015 · US
Cylinder structure for internal combustion engine
US-9080531-B2 · Jul 14, 2015 · US