Engine compartment heating assembly
US-10883457-B2 · Jan 5, 2021 · US
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Internal-combustion aspects of rotary engines in which the combusted gases displace one or more reciprocating pistons
Internal-combustion aspects of rotary engines in which the combusted gases displace one or more reciprocating pistons · 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 | F02B57/00 |
| Official title | Internal-combustion aspects of rotary engines in which the combusted gases displace one or more reciprocating pistons |
| Display label | Internal-combustion aspects of rotary engines in which the combusted gases displace one or more reciprocating pistons |
| Total patents | 9 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2021 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hybrid vehicle
US-2019375284-A1 · Dec 12, 2019 · US
Internal combustion engine
US-2019376447-A1 · Dec 12, 2019 · US
Engine assembly in compartment
US-2018306147-A1 · Oct 25, 2018 · US
Vehicle equipped with engine for driving a generator
US-2017120756-A1 · May 4, 2017 · US
Systems and methods for purge and PCV control
US-9528406-B2 · Dec 27, 2016 · US
Device for effecting an axial shift of a rotary shaft for use in a variable camshaft drive mechanism
US-9476328-B2 · Oct 25, 2016 · US
A device for effecting an axial shift of a rotary shaft for use in a variable camshaft drive mechanism
US-2015369089-A1 · Dec 24, 2015 · US
Systems and methods for purge and pcv control
US-2015337696-A1 · Nov 26, 2015 · US