Camless engine
US-11725548-B2 · Aug 15, 2023 · US
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Pneumatic engines
Pneumatic engines · 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 | F01L2820/034 |
| Official title | Pneumatic engines |
| Display label | Pneumatic engines |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Camless engine
US-2022412237-A1 · Dec 29, 2022 · US
Pneumatic system for an internal combustion engine
US-11125124-B2 · Sep 21, 2021 · US
A pneumatic system for an internal combustion engine
US-2020347757-A1 · Nov 5, 2020 · US
Sliding cam system
US-10738665-B2 · Aug 11, 2020 · US
Valve arrangement
US-10233794-B2 · Mar 19, 2019 · US
Sliding cam system
US-2019072009-A1 · Mar 7, 2019 · US
Modularized multifunctional variable valve actuation system for use in 6-cylinder internal combustion engine
US-10060308-B2 · Aug 28, 2018 · US
Camshaft phaser using one-way slipper clutches
US-10060303-B2 · Aug 28, 2018 · US
A valve arrangement
US-2017241304-A1 · Aug 24, 2017 · US
Start of an internal combustion engine with at least one engine valve in an open state during cranking
US-9739184-B2 · Aug 22, 2017 · US
Camshaft phaser using one-way slipper clutches
US-2017037749-A1 · Feb 9, 2017 · US
Modularized multifunctional variable valve actuation system for use in 6-cylinder internal combustion engine
US-2017009618-A1 · Jan 12, 2017 · US
Start of an internal combustion engine with at least one engine valve in an open state during cranking
US-2016290186-A1 · Oct 6, 2016 · US
Rocker latch for controlling engine valve actuation
US-9410455-B2 · Aug 9, 2016 · US