Lubrication maintenance systems and methods of changing lubrication in a turbine engine
US-2025327413-A1 · Oct 23, 2025 · US
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characterised by the type of purification
characterised by the type of purification · 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 | F01M2001/1028 |
| Official title | {characterised by the type of purification} |
| Display label | characterised by the type of purification |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 5 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 2 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Power system and method of controlling power system
US-2025243793-A1 · Jul 31, 2025 · US
Lubricant supply system for a motor vehicle
US-2025091677-A1 · Mar 20, 2025 · US
Fluid delivery system for supplying fluid to a machine assembly
US-2023287811-A1 · Sep 14, 2023 · US
Fluid delivery system comprising a separate filter module
US-2023287812-A1 · Sep 14, 2023 · US
Magnetic device for capturing metal wear particles in suspension in a lubrication fluid
US-11435029-B2 · Sep 6, 2022 · US
Contamination removing device and turbocharger including contamination removing device
US-11415050-B2 · Aug 16, 2022 · US
Internal combustion engine
US-11156154-B2 · Oct 26, 2021 · US
Contamination removing device and turbocharger including contamination removing device
US-2020362755-A1 · Nov 19, 2020 · US
Oil filter assembly for an integrated drive generator
US-2020289965-A1 · Sep 17, 2020 · US
Magnetic device for capturing metal wear particles in suspension in a lubrication fluid
US-2020088350-A1 · Mar 19, 2020 · US
Separating device for separating at least one undesired fluid from a liquid, membrane of a separating device, filter, filter element, and liquid system
US-10478780-B2 · Nov 19, 2019 · US
Protection for hydraulic lifters
US-10323550-B1 · Jun 18, 2019 · US
System and method for evaluating chip zap data
US-10240549-B2 · Mar 26, 2019 · US
Combined oil filter and restrictor assembly
US-10202933-B2 · Feb 12, 2019 · US
System and method for evaluating chip zap data
US-2018187622-A1 · Jul 5, 2018 · US
Separating Device for Separating at Least One Undesired Fluid from a Liquid, Membrane of a Separating Device, Filter, Filter Element, and Liquid System
US-2017354933-A1 · Dec 14, 2017 · US
Oil recirculation system for engines
US-9714588-B2 · Jul 25, 2017 · US
Internal combustion engine
US-2017167550-A1 · Jun 15, 2017 · US
Oil recirculation system for engines
US-2017009619-A1 · Jan 12, 2017 · US