Oil tank
US-11174787-B2 · Nov 16, 2021 · US
Separating lubricant from air or fuel-air mixture before entry into cylinder (separating in general B01D)
Separating lubricant from air or fuel-air mixture before entry into cylinder (separating in general B01D) · 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 | F01M11/08 |
| Official title | Separating lubricant from air or fuel-air mixture before entry into cylinder (separating in general B01D) |
| Display label | Separating lubricant from air or fuel-air mixture before entry into cylinder (separating in general B01D) |
| Total patents | 73 |
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 | 8 |
| 2016 | 4 |
| 2017 | 9 |
| 2018 | 12 |
| 2019 | 11 |
| 2020 | 7 |
| 2021 | 10 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Head cover structure
US-11136909-B2 · Oct 5, 2021 · US
Device for separating an air/oil mixture
US-11110379-B2 · Sep 7, 2021 · US
Intake structure of vehicle and method of mounting nipple to intake structure
US-2021239078-A1 · Aug 5, 2021 · US
Jet engine
US-11073041-B2 · Jul 27, 2021 · US
Head cover structure
US-2021172354-A1 · Jun 10, 2021 · US
Integral centrifugal degasser
US-2021131322-A1 · May 6, 2021 · US
Oil return structure
US-2021010398-A1 · Jan 14, 2021 · US
Intake manifold for engine
US-10890088-B2 · Jan 12, 2021 · US
Flow control system to eliminate air ingestion
US-10837329-B2 · Nov 17, 2020 · US
Oil separator
US-10815849-B2 · Oct 27, 2020 · US
Multi-Function Oil Tank
US-2020271014-A1 · Aug 27, 2020 · US
Device for separating an air/oil mixture
US-2020238208-A1 · Jul 30, 2020 · US
Oil separator
US-10603619-B2 · Mar 31, 2020 · US
Intake manifold for engine
US-2020049039-A1 · Feb 13, 2020 · US
Oil supply device
US-2020018199-A1 · Jan 16, 2020 · US
Oil supply apparatus for vehicle
US-10486085-B2 · Nov 26, 2019 · US
Hydraulic circuit
US-2019346038-A1 · Nov 14, 2019 · US
Oil tank system
US-2019338670-A1 · Nov 7, 2019 · US
Oil Tank
US-2019338705-A1 · Nov 7, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01M11/08?
- CPC F01M11/08 is the Cooperative Patent Classification code for “Separating lubricant from air or fuel-air mixture before entry into cylinder (separating in general B01D).”
- How many patents are filed under CPC F01M11/08 (Separating lubricant from air or fuel-air mixture before entry into cylinder (separating in general B01D))?
- Our database includes 73 publications tagged with this CPC code.
- Is patent activity under CPC F01M11/08 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).