Piston and internal combustion engine
US-2026036073-A1 · Feb 5, 2026 · US
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Non-pressurised lubrication, or non-closed-circuit lubrication, not otherwise provided for
Non-pressurised lubrication, or non-closed-circuit lubrication, not otherwise provided for · 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 | F01M9/12 |
| Official title | Non-pressurised lubrication, or non-closed-circuit lubrication, not otherwise provided for |
| Display label | Non-pressurised lubrication, or non-closed-circuit lubrication, not otherwise provided for |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Axle assembly
US-2021123363-A1 · Apr 29, 2021 · US
Axle assembly
US-10968793-B1 · Apr 6, 2021 · US
Device for supplying lubricant
US-10954831-B2 · Mar 23, 2021 · US
Image forming device
US-10619531-B2 · Apr 14, 2020 · US
Auxiliary oil distribution system and gas turbine engine with an auxiliary oil distribution system
US-2020063661-A1 · Feb 27, 2020 · US
Case for endless transmission member
US-10487937-B2 · Nov 26, 2019 · US
Device for supplying lubricant
US-2019211720-A1 · Jul 11, 2019 · US
Lubricant compositions for surface finishing of materials
US-10316712-B2 · Jun 11, 2019 · US
Image forming device
US-2018229510-A1 · Aug 16, 2018 · US
Case for endless transmission member
US-2017254409-A1 · Sep 7, 2017 · US
Lubricant compositions for surface finishing of materials
US-2017175600-A1 · Jun 22, 2017 · US
General-purpose engine
US-9605571-B2 · Mar 28, 2017 · US
Device with lubricant protection arrangement and lubricating method
US-9249702-B2 · Feb 2, 2016 · US
General-purpose engine
US-2015267578-A1 · Sep 24, 2015 · US