Internal combustion engine with at least one hollow-head valve
US-11828207-B2 · Nov 28, 2023 · US
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Valve configurations in relation to engine
Valve configurations in relation to engine · 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 | F01L2003/25 |
| Official title | {Valve configurations in relation to engine} |
| Display label | Valve configurations in relation to engine |
| Total patents | 21 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 5 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 2 |
| 2023 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Device and method for cold testing engine component operation
US-11644384-B2 · May 9, 2023 · US
Stem seal for valve assembly of machine engine
US-11608760-B2 · Mar 21, 2023 · US
Stem seal for valve assembly of machine engine
US-2021340890-A1 · Nov 4, 2021 · US
Engine
US-2021010444-A1 · Jan 14, 2021 · US
Internal combustion engine with at least one hollow-head valve
US-2020232354-A1 · Jul 23, 2020 · US
Two stroke, opposed piston engine with compression release brake arrangement and method
US-10683782-B2 · Jun 16, 2020 · US
Internal combustion engine having a valve actuation device
US-10669900-B2 · Jun 2, 2020 · US
Device and method for cold testing engine component operation
US-2019353558-A1 · Nov 21, 2019 · US
Air motor and pump comprising such a motor
US-10385693-B2 · Aug 20, 2019 · US
Internal combustion engine having a valve actuation device
US-2019242278-A1 · Aug 8, 2019 · US
Internal combustion engine
US-9964066-B2 · May 8, 2018 · US
Method for supplying inert gas into poppet valve intermediate and apparatus for supplying inert gas into poppet valve intermediate
US-9840948-B2 · Dec 12, 2017 · US
Air motor and pump comprising such a motor
US-2017350247-A1 · Dec 7, 2017 · US
Method for supplying inert gas into poppet valve intermediate and apparatus for supplying inert gas into poppet valve intermediate
US-2017276031-A1 · Sep 28, 2017 · US
Two stroke, opposed piston engine with compression release brake arrangement and method
US-2017218799-A1 · Aug 3, 2017 · US
Compact pressure swing reformer
US-9687803-B2 · Jun 27, 2017 · US
Internal combustion engine
US-2016348608-A1 · Dec 1, 2016 · US
High-pressure pump
US-9316193-B2 · Apr 19, 2016 · US
Selectively deactivatable engine cylinder
US-2016010568-A1 · Jan 14, 2016 · US