Oil condition estimation device and oil condition estimation method
US-2025389214-A1 · Dec 25, 2025 · US
by considering pressure
by considering pressure · 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 | F01M2011/1446 |
| Official title | {by considering pressure} |
| Display label | by considering pressure |
| Total patents | 42 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 6 |
| 2021 | 1 |
| 2022 | 9 |
| 2023 | 6 |
| 2024 | 1 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Controller, method, and engine system for engine crank control
US-2025361824-A1 · Nov 27, 2025 · US
Method and apparatus for engine oil dilution analysis
US-12339271-B2 · Jun 24, 2025 · US
Leakage detection device for PCV passage, and vehicle
US-12326105-B2 · Jun 10, 2025 · US
Engine oil system health monitoring using oil level sensor
US-2025137883-A1 · May 1, 2025 · US
Synchronization of lubricant system service
US-12018600-B2 · Jun 25, 2024 · US
Leakage detection device for pcv passage, and vehicle
US-2023392526-A1 · Dec 7, 2023 · US
Systems and methods for reliably detecting wear metal particles in lubrication systems to avoid progressive damage
US-11828743-B2 · Nov 28, 2023 · US
Systems and methods for lubricant dilution detection
US-11821345-B2 · Nov 21, 2023 · US
Method and apparatus for engine oil dilution analysis
US-2023314403-A1 · Oct 5, 2023 · US
Method of controlling an engine oil warning light of a vehicle
US-2023111863-A1 · Apr 13, 2023 · US
Systems and methods for reliably detecting wear metal particles in lubrication systems to avoid progressive damage
US-2023044685-A1 · Feb 9, 2023 · US
Method and device for calculating consumption amount of engine oil of vehicle
US-11506095-B1 · Nov 22, 2022 · US
Systems and methods for reliably detecting wear metal particles in lubrication systems to avoid progressive damage
US-11499454-B2 · Nov 15, 2022 · US
Lubricant dilution detection system
US-2022307394-A1 · Sep 29, 2022 · US
Systems and methods for lubricant dilution detection
US-2022307395-A1 · Sep 29, 2022 · US
Lubricant dilution detection system
US-11454144-B1 · Sep 27, 2022 · US
Apparatus and method for controlling cluster of vehicle
US-11377986-B2 · Jul 5, 2022 · US
Method And Device For Determining The Engine Oil Quality Of An Internal Combustion Engine
US-2022186641-A1 · Jun 16, 2022 · US
Engine oil dipstick monitoring apparatus
US-11346740-B2 · May 31, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01M2011/1446?
- CPC F01M2011/1446 is the Cooperative Patent Classification code for “by considering pressure.”
- How many patents are filed under CPC F01M2011/1446 (by considering pressure)?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC F01M2011/1446 growing?
- Publication counts under this code: 1 in 2024 vs 5 in 2025 (latest complete years).