Rocker arm with inboard lost motion spring over valve
US-11549403-B2 · Jan 10, 2023 · US
Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof · 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 | F01L3/00 |
| Official title | Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof |
| Display label | Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof |
| Total patents | 63 |
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 | 6 |
| 2017 | 7 |
| 2018 | 6 |
| 2019 | 5 |
| 2020 | 17 |
| 2021 | 8 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of manufacturing engine valve intermediate product with boss portion
US-11285570-B2 · Mar 29, 2022 · US
Cylinder head and engine
US-11143063-B2 · Oct 12, 2021 · US
Cylinder head and engine
US-2021285345-A1 · Sep 16, 2021 · US
Method of Manufacturing Engine Valve Intermediate Product with Boss Portion
US-2021245309-A1 · Aug 12, 2021 · US
Three roller rocker arm with pump-down stop
US-11078810-B2 · Aug 3, 2021 · US
Rocker arm with inboard lost motion spring over valve
US-2021087953-A1 · Mar 25, 2021 · US
Valve seat insert for high power density and high speed diesel engines
US-10934901-B1 · Mar 2, 2021 · US
Valve seat insert for engine having double-crowned seating surface profiled for limiting valve recession
US-10934899-B2 · Mar 2, 2021 · US
Valve seat insert for high power density and high speed diesel engines
US-2021054768-A1 · Feb 25, 2021 · US
Three roller rocker arm with cantilevered rollers and lost motion spring over valve or over rocker arm pivot
US-10876436-B2 · Dec 29, 2020 · US
Self-contained e-foot
US-10871089-B2 · Dec 22, 2020 · US
Three roller rocker arm with outboard lost motion spring
US-10871088-B2 · Dec 22, 2020 · US
High temperature alloy for casting engine valves
US-10865466-B2 · Dec 15, 2020 · US
Engine and gas exchange valve with under-head fillet contoured for chordal stress mitigation
US-10844758-B2 · Nov 24, 2020 · US
A gas feeding arrangement
US-2020300182-A1 · Sep 24, 2020 · US
Method for manufacture a metallic component by pre-manufactured bodies
US-2020290127-A1 · Sep 17, 2020 · US
Valve seat insert for internal combustion engine profiled to resist valve recession
US-10731523-B2 · Aug 4, 2020 · US
Engine and gas exchange valve with under-head fillet contoured for chordal stress mitigation
US-2020232353-A1 · Jul 23, 2020 · US
Method for manufacturing a metallic component by pre-manufactured bodies
US-10702922-B2 · Jul 7, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01L3/00?
- CPC F01L3/00 is the Cooperative Patent Classification code for “Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof.”
- How many patents are filed under CPC F01L3/00 (Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof)?
- Our database includes 63 publications tagged with this CPC code.
- Is patent activity under CPC F01L3/00 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).