Locomotive sensor system for monitoring engine and lubricant health
US-2025035608-A1 · Jan 30, 2025 · US
Acidity, pH-value
Acidity, pH-value · 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 | F16N2200/08 |
| Official title | Acidity, pH-value |
| Display label | Acidity, pH-value |
| Total patents | 31 |
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 | 1 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 7 |
| 2020 | 4 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Engine lubrication oil consumption and condition monitoring
US-11988117-B2 · May 21, 2024 · US
Vehicle liquid monitoring system and method
US-11788446-B1 · Oct 17, 2023 · US
Sensing system for detecting machine fluid degradation
US-11612841-B2 · Mar 28, 2023 · US
Method and control unit for operating a spark-ignition internal combustion engine or a dual-fuel internal combustion engine operated in the spark-ignition mode
US-11326487-B2 · May 10, 2022 · US
Engine Lubrication Oil Consumption and Condition Monitoring
US-2022065142-A1 · Mar 3, 2022 · US
Method and control unit for operating a diesel internal combustion engine or a dual-fuel internal combustion engine operated in the diesel mode
US-11187121-B2 · Nov 30, 2021 · US
Sensing system for detecting machine fluid degradation
US-2021308606-A1 · Oct 7, 2021 · US
Sensing system for detecting machine fluid degradation
US-11110378-B2 · Sep 7, 2021 · US
Vehicle liquid monitoring system and method
US-11105231-B1 · Aug 31, 2021 · US
Lubricant deterioration detection device and lubricant deterioration state evaluation method
US-10890575-B2 · Jan 12, 2021 · US
Method and control unit for operating a spark-ignition internal combustion engine or a dual-fuel internal combustion engine operated in the spark-ignition mode
US-2020340377-A1 · Oct 29, 2020 · US
Method and control unit for operating a diesel internal combustion engine or a dual-fuel internal combustion engine operated in the diesel mode
US-2020340378-A1 · Oct 29, 2020 · US
Systems for in situ monitoring of working fluids and working fluid systems
US-10738669-B2 · Aug 11, 2020 · US
Fluid quality monitoring and filtration system
US-10688422-B2 · Jun 23, 2020 · US
Fluid quality monitoring and filtration system
US-2019366246-A1 · Dec 5, 2019 · US
Fluid quality monitoring and filtration system
US-10478762-B2 · Nov 19, 2019 · US
Sensing System for Detecting Machine Fluid Degradation
US-2019255470-A1 · Aug 22, 2019 · US
Sensing system for detecting machine fluid degradation
US-10315137-B2 · Jun 11, 2019 · US
Locomotive sensor system for monitoring engine and lubricant health
US-2019156600-A1 · May 23, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16N2200/08?
- CPC F16N2200/08 is the Cooperative Patent Classification code for “Acidity, pH-value.”
- How many patents are filed under CPC F16N2200/08 (Acidity, pH-value)?
- Our database includes 31 publications tagged with this CPC code.
- Is patent activity under CPC F16N2200/08 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).