Oil tank for a turbomachine with negative-G-compatible cyclonic circulation
US-12577890-B2 · Mar 17, 2026 · US
comprising lubricant-air separators
comprising lubricant-air separators · 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 | F01M2011/038 |
| Official title | {comprising lubricant-air separators} |
| Display label | comprising lubricant-air separators |
| Total patents | 55 |
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 | 1 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 1 |
| 2022 | 9 |
| 2023 | 2 |
| 2024 | 9 |
| 2025 | 8 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Internal combustion engine
US-12553368-B2 · Feb 17, 2026 · US
Oil system breather configuration to capture oil emissions
US-2025389207-A1 · Dec 25, 2025 · US
Oil tank for a turbomachine with negative-g-compatible cyclonic circulation
US-2025376934-A1 · Dec 11, 2025 · US
Small air-cooled engine assembly with dry sump lubrication system
US-12416252-B2 · Sep 16, 2025 · US
Lubrication system with pump feed from de-aerator
US-2025207531-A1 · Jun 26, 2025 · US
Dynamic deaeration system
US-12330089-B2 · Jun 17, 2025 · US
Internal combustion engine
US-2025172078-A1 · May 29, 2025 · US
Oil-gas treatment system, oil-gas treatment method and mechanical apparatus
US-12257543-B2 · Mar 25, 2025 · US
Lubrication system with pump feed from de-aerator
US-12234767-B2 · Feb 25, 2025 · US
Filter system and replaceable filter cartridge
US-12134054-B2 · Nov 5, 2024 · US
Lubrication system with pump feed from de-aerator
US-2024328352-A1 · Oct 3, 2024 · US
Deaerator for aircraft engine and associated method of operation
US-12017157-B2 · Jun 25, 2024 · US
Filter system and replaceable filter cartridge
US-2024165550-A1 · May 23, 2024 · US
Removing moisture from a lubricant reservoir
US-11988330-B1 · May 21, 2024 · US
Removing moisture from a lubricant reservoir
US-2024159354-A1 · May 16, 2024 · US
Dynamic deaeration system
US-2024082755-A1 · Mar 14, 2024 · US
Deaeration conduit
US-11867357-B1 · Jan 9, 2024 · US
Filter system and replaceable filter cartridge
US-11865481-B2 · Jan 9, 2024 · US
Oil distribution system for gas turbine engine
US-11655731-B2 · May 23, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01M2011/038?
- CPC F01M2011/038 is the Cooperative Patent Classification code for “comprising lubricant-air separators.”
- How many patents are filed under CPC F01M2011/038 (comprising lubricant-air separators)?
- Our database includes 55 publications tagged with this CPC code.
- Is patent activity under CPC F01M2011/038 growing?
- Publication counts under this code: 9 in 2024 vs 8 in 2025 (latest complete years).