Systems and methods for coordinating an air blend valve with an intake air heater
US-12442352-B1 · Oct 14, 2025 · US
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Methods of operating
Methods of operating · 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 | F02B9/04 |
| Official title | Methods of operating |
| Display label | Methods of operating |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 6 |
| 2022 | 4 |
| 2024 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Piston for compression-ignition engine having antebowl and engine operating strategy utilizing same
US-12352200-B2 · Jul 8, 2025 · US
Compression ignition engine with igniter and pilot injector
US-12209532-B2 · Jan 28, 2025 · US
Compression Ignition Engine with Igniter and Pilot Injector
US-2024295188-A1 · Sep 5, 2024 · US
An improved ammonia based fuel for engines
US-2022275299-A1 · Sep 1, 2022 · US
Machine learning for misfire detection in a dynamic firing level modulation controlled engine of a vehicle
US-11326534-B2 · May 10, 2022 · US
Fast torque response for boosted engines
US-11248546-B1 · Feb 15, 2022 · US
Machine learning for misfire detection in a dynamic firing level modulation controlled engine of a vehicle
US-2022010744-A1 · Jan 13, 2022 · US
Engine system, combustion control system, and operating method with close-coupled early pilots and cylinder temperature control
US-11143137-B1 · Oct 12, 2021 · US
Machine learning for misfire detection in a dynamic firing level modulation controlled engine of a vehicle
US-11125175-B2 · Sep 21, 2021 · US
Systems and methods for in-cylinder fuel dosing for exhaust aftertreatment system thermal management
US-11015540-B2 · May 25, 2021 · US
Control device for engine
US-11008970-B2 · May 18, 2021 · US
Control device for engine
US-2021017929-A1 · Jan 21, 2021 · US
Machine learning for misfire detection in a dynamic firing level modulation controlled engine of a vehicle
US-2021003088-A1 · Jan 7, 2021 · US
Control system of compression-ignition engine
US-10697391-B2 · Jun 30, 2020 · US
Piston for compression-ignition engine having antebowl and engine operating strategy utilizing same
US-2020165963-A1 · May 28, 2020 · US
Systems and methods for in-cylinder fuel dosing for exhaust aftertreatment system thermal management
US-2020049084-A1 · Feb 13, 2020 · US
Control system of compression ignition type internal combustion engine
US-10190527-B2 · Jan 29, 2019 · US
Control system of compression-ignition engine
US-2018334989-A1 · Nov 22, 2018 · US
Control system of compression ignition type internal combustion engine
US-2017335790-A1 · Nov 23, 2017 · US