Gearbox assembly with lubricant extraction volume ratio
US-2023417185-A1 · Dec 28, 2023 · US
Oil catchers; Oil wipers (oil-scraping rings for pistons F16J9/20 {; cleaning means for indicating or measuring dip members, e.g. dipstick wipers G01F23/045})
Oil catchers; Oil wipers (oil-scraping rings for pistons F16J9/20 {; cleaning means for indicating or measuring dip members, e.g. dipstick wipers G01F23/045}) · 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 | F16N31/02 |
| Official title | Oil catchers; Oil wipers (oil-scraping rings for pistons F16J9/20 {; cleaning means for indicating or measuring dip members, e.g. dipstick wipers G01F23/045}) |
| Display label | Oil catchers; Oil wipers (oil-scraping rings for pistons F16J9/20 {; cleaning means for indicating or measuring dip members, e.g. dipstick wipers G01F23/045}) |
| Total patents | 69 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 8 |
| 2017 | 5 |
| 2018 | 8 |
| 2019 | 6 |
| 2020 | 5 |
| 2021 | 9 |
| 2022 | 10 |
| 2023 | 6 |
| 2024 | 5 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Grease collection arrangement for collecting waste grease from a grease lubricated rotor blade pitch bearing of a wind turbine
US-11828269-B2 · Nov 28, 2023 · US
Sump auxiliary vent system
US-11795841-B2 · Oct 24, 2023 · US
Demister for a gearing system and method
US-11719326-B2 · Aug 8, 2023 · US
Sump auxiliary vent system
US-2022403756-A1 · Dec 22, 2022 · US
Oil drain pan and container with vertically adjustable funnel
US-2022381399-A1 · Dec 1, 2022 · US
Oil scavenge system
US-11506082-B2 · Nov 22, 2022 · US
Demister for a gearing system and method
US-2022333678-A1 · Oct 20, 2022 · US
Systems and methods of servicing turbomachines
US-2022146043-A1 · May 12, 2022 · US
Sump auxiliary vent system
US-11306614-B2 · Apr 19, 2022 · US
Grease collection arrangement for collecting waste grease from a grease lubricated rotor blade pitch bearing of a wind turbine
US-2022099069-A1 · Mar 31, 2022 · US
Lubricant recovery system for heat exchange system and heat exchange system
US-2022074633-A1 · Mar 10, 2022 · US
Ventilation apparatus of internal combustion engine
US-11230998-B2 · Jan 25, 2022 · US
Oil-retaining mechanism, valve structure, and water outflow device
US-11221089-B2 · Jan 11, 2022 · US
Rotating electrical machine
US-11165306-B2 · Nov 2, 2021 · US
Grease collection arrangement
US-2021332944-A1 · Oct 28, 2021 · US
Turbocharger
US-11067091-B2 · Jul 20, 2021 · US
Rotor balance ring and oil flinger
US-2021159760-A1 · May 27, 2021 · US
Wind turbine drivetrain component with low friction radial shaft seal
US-2021102528-A1 · Apr 8, 2021 · US
Sealing concept for an output shaft
US-2021088142-A1 · Mar 25, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16N31/02?
- CPC F16N31/02 is the Cooperative Patent Classification code for “Oil catchers; Oil wipers (oil-scraping rings for pistons F16J9/20 {; cleaning means for indicating or measuring dip members, e.g. dipstick wipers G01F23/045}).”
- How many patents are filed under CPC F16N31/02 (Oil catchers; Oil wipers (oil-scraping rings for pistons F16J9/20 {; cleaning means for indicating or measuring dip members, e.g. dipstick wipers G01F23/045}))?
- Our database includes 69 publications tagged with this CPC code.
- Is patent activity under CPC F16N31/02 growing?
- Publication counts under this code: 6 in 2023 vs 5 in 2024 (latest complete years).