Internal combustion engine for a motor vehicle, motor vehicle, and method
US-12590553-B2 · Mar 31, 2026 · US
Means for keeping lubricant level constant
Means for keeping lubricant level constant · 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 | F01M11/061 |
| Official title | {Means for keeping lubricant level constant} |
| Display label | Means for keeping lubricant level constant |
| Total patents | 36 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 6 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 2 |
| 2024 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Device and method for filling an oil reservoir of an aircraft engine
US-11964779-B2 · Apr 23, 2024 · US
Internal Combustion Engine for a Motor Vehicle, Motor Vehicle, and Method
US-2024125258-A1 · Apr 18, 2024 · US
Lube oil replenishment for compressors
US-11920577-B1 · Mar 5, 2024 · US
Assemblies and methods for controlling lubrication for rotary engine apex seals
US-11867101-B1 · Jan 9, 2024 · US
Device for supplying an oil tank from a second tank
US-11512615-B2 · Nov 29, 2022 · US
Device and method for filling an oil reservoir of an aircraft engine
US-2022212816-A1 · Jul 7, 2022 · US
Transmission arrangement for a motor vehicle
US-11060603-B2 · Jul 13, 2021 · US
Engine oil recirculation system for extended maintenance interval
US-2021102484-A1 · Apr 8, 2021 · US
Oil container of a combustion engine
US-10947874-B2 · Mar 16, 2021 · US
Oil heater for a generator set
US-10844760-B2 · Nov 24, 2020 · US
Device for supplying an oil tank from a second tank
US-2020340375-A1 · Oct 29, 2020 · US
Oil supply system for an internal combustion engine
US-10760459-B2 · Sep 1, 2020 · US
Engine
US-10724468-B2 · Jul 28, 2020 · US
Oil Container Of A Combustion Engine
US-2020049038-A1 · Feb 13, 2020 · US
Engine
US-2019360429-A1 · Nov 28, 2019 · US
Lubricant level control for lubricated systems
US-10371025-B2 · Aug 6, 2019 · US
Oil heater for a generator set
US-2019234258-A1 · Aug 1, 2019 · US
Oil supply system for an internal combustion engine
US-2019203618-A1 · Jul 4, 2019 · US
Auxiliary oil circuit
US-10247067-B2 · Apr 2, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01M11/061?
- CPC F01M11/061 is the Cooperative Patent Classification code for “Means for keeping lubricant level constant.”
- How many patents are filed under CPC F01M11/061 (Means for keeping lubricant level constant)?
- Our database includes 36 publications tagged with this CPC code.
- Is patent activity under CPC F01M11/061 growing?
- Publication counts under this code: 2 in 2022 vs 4 in 2024 (latest complete years).