System and method for controlling fuel supplied to an engine
US-11708800-B2 · Jul 25, 2023 · US
Using a comparator with variable reference
Using a comparator with variable reference · 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 | F02D41/1479 |
| Official title | {Using a comparator with variable reference} |
| Display label | Using a comparator with variable reference |
| Total patents | 40 |
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 | 3 |
| 2016 | 5 |
| 2017 | 5 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 12 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
State detection system for internal combustion engine, data analysis device, and vehicle
US-11255282-B2 · Feb 22, 2022 · US
State detection system for internal combustion engine, data analysis device, and vehicle
US-10969304-B2 · Apr 6, 2021 · US
Abnormality diagnosis device for in-cylinder pressure sensor
US-10934962-B2 · Mar 2, 2021 · US
Method and system for determining an amount of a substance in exhaust gas of an internal combustion engine
US-10934957-B2 · Mar 2, 2021 · US
Exhaust system for internal combustion engine
US-10865725-B2 · Dec 15, 2020 · US
System and method for controlling fuel supplied to an engine
US-2020291883-A1 · Sep 17, 2020 · US
Catalyst diagnosis device
US-10774767-B2 · Sep 15, 2020 · US
State detection system for internal combustion engine, data analysis device, and vehicle
US-2020263617-A1 · Aug 20, 2020 · US
State detection system for internal combustion engine, data analysis device, and vehicle
US-2020264074-A1 · Aug 20, 2020 · US
Deep reinforcement learning for air handling and fuel system referencing
US-10746123-B2 · Aug 18, 2020 · US
System and method for controlling fuel supplied to an engine
US-10718286-B2 · Jul 21, 2020 · US
Method And System For Determining An Amount Of A Substance In Exhaust Gas Of An Internal Combustion Engine
US-2020224599-A1 · Jul 16, 2020 · US
Abnormality diagnosis device for in-cylinder pressure sensor
US-2020200112-A1 · Jun 25, 2020 · US
Method of predicting and controlling NOx generation amount
US-10578041-B1 · Mar 3, 2020 · US
Deep reinforcement learning for air handling and fuel system referencing
US-2020063681-A1 · Feb 27, 2020 · US
Catalyst diagnosis device
US-2020032730-A1 · Jan 30, 2020 · US
Method of determining air charging system deficient state of health during part load operation
US-10400686-B2 · Sep 3, 2019 · US
Control apparatus for internal combustion engine
US-10344697-B2 · Jul 9, 2019 · US
Control apparatus for an internal combustion engine
US-10316776-B2 · Jun 11, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D41/1479?
- CPC F02D41/1479 is the Cooperative Patent Classification code for “Using a comparator with variable reference.”
- How many patents are filed under CPC F02D41/1479 (Using a comparator with variable reference)?
- Our database includes 40 publications tagged with this CPC code.
- Is patent activity under CPC F02D41/1479 growing?
- Publication counts under this code: 1 in 2022 vs 1 in 2023 (latest complete years).