System for method for controlling engine knock of a variable displacement engine
US-2017356367-A1 · Dec 14, 2017 · US
Temperature of lubricating oil or working fluid
Temperature of lubricating oil or working fluid · 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 | F02D2200/023 |
| Official title | Temperature of lubricating oil or working fluid |
| Display label | Temperature of lubricating oil or working fluid |
| Total patents | 415 |
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 | 18 |
| 2016 | 20 |
| 2017 | 34 |
| 2018 | 48 |
| 2019 | 45 |
| 2020 | 52 |
| 2021 | 67 |
| 2022 | 51 |
| 2023 | 28 |
| 2024 | 23 |
| 2025 | 27 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems And Methods For Multiple Catalyst Light Off Events During Drive Cycle
US-2017342924-A1 · Nov 30, 2017 · US
Control method of electronic waste gate actuator
US-9816453-B2 · Nov 14, 2017 · US
Control device for internal combustion engine
US-2017314495-A1 · Nov 2, 2017 · US
Engine Control Device
US-2017314500-A1 · Nov 2, 2017 · US
Method and apparatus for controlling the starting of an internal combustion engine
US-9732709-B2 · Aug 15, 2017 · US
Method for Starting an Internal Combustion Engine
US-2017218877-A1 · Aug 3, 2017 · US
Direct injection internal combustion engine
US-2017184046-A1 · Jun 29, 2017 · US
System and method for controlling valve timing of continuous variable valve duration engine
US-2017167393-A1 · Jun 15, 2017 · US
Apparatus and method for controlling engine
US-2017167394-A1 · Jun 15, 2017 · US
Fuel Injector Driver for Cold Start of High Resistance Injector
US-2017167428-A1 · Jun 15, 2017 · US
Device for controlling driving mode and method for controlling driving mode using the same
US-2017122236-A1 · May 4, 2017 · US
Method and system for variable cam timing device
US-2017107870-A1 · Apr 20, 2017 · US
Systems and methods for engine control based on engine oil viscosity
US-9624858-B2 · Apr 18, 2017 · US
Method of controlling supercharger
US-2017096952-A1 · Apr 6, 2017 · US
Exhaust system temperature estimation systems and methods
US-2017096957-A1 · Apr 6, 2017 · US
Exhaust system pressure estimation systems and methods
US-2017096950-A1 · Apr 6, 2017 · US
Control apparatus for internal combustion engine
US-2017088113-A1 · Mar 30, 2017 · US
Abuse mode torque limiting control method for a ball-type continuously variable transmission
US-2017082049-A1 · Mar 23, 2017 · US
Internal combustion engine control apparatus
US-2017009688-A1 · Jan 12, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D2200/023?
- CPC F02D2200/023 is the Cooperative Patent Classification code for “Temperature of lubricating oil or working fluid.”
- How many patents are filed under CPC F02D2200/023 (Temperature of lubricating oil or working fluid)?
- Our database includes 415 publications tagged with this CPC code.
- Is patent activity under CPC F02D2200/023 growing?
- Publication counts under this code: 23 in 2024 vs 27 in 2025 (latest complete years).