Engine variable oil pump diagnostic method
US-10865670-B2 · Dec 15, 2020 · US
Indicating or safety devices (concerning lubricant level F01M11/06, F01M11/12)
Indicating or safety devices (concerning lubricant level F01M11/06, F01M11/12) · 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 | F01M1/18 |
| Official title | Indicating or safety devices (concerning lubricant level F01M11/06, F01M11/12) |
| Display label | Indicating or safety devices (concerning lubricant level F01M11/06, F01M11/12) |
| Total patents | 106 |
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 | 11 |
| 2016 | 12 |
| 2017 | 7 |
| 2018 | 9 |
| 2019 | 15 |
| 2020 | 16 |
| 2021 | 15 |
| 2022 | 8 |
| 2023 | 6 |
| 2024 | 5 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of controlling electric oil pump
US-10840847-B2 · Nov 17, 2020 · US
Filter diagnostics and prognostics
US-10697337-B2 · Jun 30, 2020 · US
Replacement recommending device, replacement recommending method, and non-transitory storage medium storing replacement recommending program
US-2020182853-A1 · Jun 11, 2020 · US
Oil carryover reduction system
US-10557430-B2 · Feb 11, 2020 · US
Synchronization of lubricant system service
US-2020018200-A1 · Jan 16, 2020 · US
Bearing device and exhaust turbine turbocharger
US-10480576-B2 · Nov 19, 2019 · US
Systems and methods for warming up an engine with an electric boost device
US-10465575-B2 · Nov 5, 2019 · US
Vehicular electric oil pump device
US-2019323566-A1 · Oct 24, 2019 · US
Gas turbine engine
US-2019316488-A1 · Oct 17, 2019 · US
Oil system
US-2019292944-A1 · Sep 26, 2019 · US
Oil supply structure for power unit, and power unit
US-10400834-B2 · Sep 3, 2019 · US
Lubrication strategy for dry run pump system
US-2019249663-A1 · Aug 15, 2019 · US
System and method for diagnosing a variable oil pump
US-2019242279-A1 · Aug 8, 2019 · US
Engine variable oil pump diagnostic method
US-2019195095-A1 · Jun 27, 2019 · US
Method of controlling electric oil pump
US-2019190430-A1 · Jun 20, 2019 · US
On-engine fluid monitoring system
US-10309276-B2 · Jun 4, 2019 · US
Systems and methods for warming up an engine with an electric boost device
US-2019153916-A1 · May 23, 2019 · US
Engine variable oil pump diagnostic method
US-2019120096-A1 · Apr 25, 2019 · US
Method and system for diagnosing failure of piston cooling device
US-2019078493-A1 · Mar 14, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01M1/18?
- CPC F01M1/18 is the Cooperative Patent Classification code for “Indicating or safety devices (concerning lubricant level F01M11/06, F01M11/12).”
- How many patents are filed under CPC F01M1/18 (Indicating or safety devices (concerning lubricant level F01M11/06, F01M11/12))?
- Our database includes 106 publications tagged with this CPC code.
- Is patent activity under CPC F01M1/18 growing?
- Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).