Structure for suctioning back blow-back fuel
US-11162463-B2 · Nov 2, 2021 · US
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returning to the intake passage
returning to the intake passage · 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 | F02M33/04 |
| Official title | returning to the intake passage |
| Display label | returning to the intake passage |
| Total patents | 22 |
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 | 8 |
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Structure for suctioning back blow-back fuel
US-2020072171-A1 · Mar 5, 2020 · US
Apparatus for reducing fuel evaporation gas using closeable path structure
US-10316806-B2 · Jun 11, 2019 · US
Systems and methods for on-board data processing
US-10087891-B2 · Oct 2, 2018 · US
Variable capacity, configurable hydrocarbon emissions trap
US-10018160-B2 · Jul 10, 2018 · US
Apparatus for reducing fuel evaporation gas using closeable path structure
US-2018171947-A1 · Jun 21, 2018 · US
Systems and methods for on-board data processing
US-2018058386-A1 · Mar 1, 2018 · US
Variable capacity, configurable hydrocarbon emissions trap
US-2017211518-A1 · Jul 27, 2017 · US
Method for suctioning liquid fuel from a liquid trap in a fuel tank; and fuel system for a motor vehicle
US-9631586-B2 · Apr 25, 2017 · US
Intake structure for internal combustion engine
US-9611820-B2 · Apr 4, 2017 · US
Induction system including a passive-adsorption hydrocarbon trap
US-9581115-B2 · Feb 28, 2017 · US
Engine air intake duct with molded-in hydrocarbon vapor trap
US-9278475-B1 · Mar 8, 2016 · US
Engine Air Intake Duct with Molded-In Hydrocarbon Vapor Trap
US-2016059468-A1 · Mar 3, 2016 · US
Evaporative emission control
US-9261057-B2 · Feb 16, 2016 · US
Induction system including a passive-adsorption hydrocarbon trap
US-2015369183-A1 · Dec 24, 2015 · US
Gas engine having intercooler
US-9217398-B2 · Dec 22, 2015 · US
Method for suctioning liquid fuel from a liquid trap in a fuel tank; and fuel system for a motor vehicle
US-2015337777-A1 · Nov 26, 2015 · US
Ejector flow rate computation for gas constituent sensor compensation
US-9188087-B2 · Nov 17, 2015 · US
Intake structure for internal combustion engine
US-2015285197-A1 · Oct 8, 2015 · US
Evaporative emission control device
US-9145857-B2 · Sep 29, 2015 · US