Fuel type prediction from mass flow measurements and thermal conductivity sensor
US-2020318562-A1 · Oct 8, 2020 · US
Determining a density, viscosity, composition or concentration (F02D19/087 takes precedence)
Determining a density, viscosity, composition or concentration (F02D19/087 takes precedence) · 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 | F02D19/0634 |
| Official title | {Determining a density, viscosity, composition or concentration (F02D19/087 takes precedence)} |
| Display label | Determining a density, viscosity, composition or concentration (F02D19/087 takes precedence) |
| Total patents | 104 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 10 |
| 2017 | 14 |
| 2018 | 11 |
| 2019 | 13 |
| 2020 | 11 |
| 2021 | 10 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 5 |
| 2025 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compression ignition gasoline engine
US-2019390627-A1 · Dec 26, 2019 · US
Method for operating an internal combustion engine with a fuel detection
US-2019368428-A1 · Dec 5, 2019 · US
Acoustic monitoring device for fuel quality
US-10466203-B2 · Nov 5, 2019 · US
Method and system for determining knock control fluid composition
US-10465633-B2 · Nov 5, 2019 · US
Method and system for determining knock control fluid composition
US-2019257271-A1 · Aug 22, 2019 · US
Internal combustion engine control device
US-10352254-B2 · Jul 16, 2019 · US
Engine and control strategy for injecting augmenting fuel to stream of gaseous fuel and air
US-10330032-B2 · Jun 25, 2019 · US
System and method for controlling fuel injection in flex-fuel vehicle
US-2019178194-A1 · Jun 13, 2019 · US
Bi-fuel internal combustion engine systems and methods
US-2019178171-A1 · Jun 13, 2019 · US
Method and system for determining knock control fluid composition
US-10316798-B2 · Jun 11, 2019 · US
System and method for coping with malfunction of ethanol sensor of flex fuel vehicle
US-2019153966-A1 · May 23, 2019 · US
Fuel type prediction from mass flow measurements and thermal conductivity sensor
US-2019120151-A1 · Apr 25, 2019 · US
System and method for managing a volatile organic compound emission stream
US-10267241-B2 · Apr 23, 2019 · US
Zero flow lubrication for a high pressure fuel pump
US-10161347-B2 · Dec 25, 2018 · US
Method and system for controlling injection of mixture fuel in an internal combustion engine
US-2018334971-A1 · Nov 22, 2018 · US
Exhaust parameter based dual fuel engine power virtual sensor
US-10132250-B2 · Nov 20, 2018 · US
Lubricity estimation device and fuel supply control device
US-2018320602-A1 · Nov 8, 2018 · US
Deposit estimation device and combustion system control device
US-2018320624-A1 · Nov 8, 2018 · US
Control device for internal combustion engine
US-10087867-B2 · Oct 2, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D19/0634?
- CPC F02D19/0634 is the Cooperative Patent Classification code for “Determining a density, viscosity, composition or concentration (F02D19/087 takes precedence).”
- How many patents are filed under CPC F02D19/0634 (Determining a density, viscosity, composition or concentration (F02D19/087 takes precedence))?
- Our database includes 104 publications tagged with this CPC code.
- Is patent activity under CPC F02D19/0634 growing?
- Publication counts under this code: 5 in 2024 vs 10 in 2025 (latest complete years).