Drainage path for a bearing sump in a vertically oriented turbine engine
US-2019383181-A1 · Dec 19, 2019 · US
Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus (oil separators for separating oil from exhaust steam F22G)
Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus (oil separators for separating oil from exhaust steam F22G) · 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 | F16N31/00 |
| Official title | Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus (oil separators for separating oil from exhaust steam F22G) |
| Display label | Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus (oil separators for separating oil from exhaust steam F22G) |
| Total patents | 179 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 8 |
| 2017 | 13 |
| 2018 | 12 |
| 2019 | 20 |
| 2020 | 20 |
| 2021 | 21 |
| 2022 | 28 |
| 2023 | 16 |
| 2024 | 15 |
| 2025 | 17 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Oil flow control for an engine by deflection
US-10508616-B2 · Dec 17, 2019 · US
Oil flow control for an engine by deflection
US-2019285025-A1 · Sep 19, 2019 · US
Lubricant container
US-10408381-B2 · Sep 10, 2019 · US
Turbine engine module comprising a casing around a device with a cover for recovering lubricating oil
US-10364881-B2 · Jul 30, 2019 · US
Oil flow control for an engine by deflection
US-10364772-B2 · Jul 30, 2019 · US
Gas turbine engine oil circulation
US-2019218936-A1 · Jul 18, 2019 · US
Lubricated enclosure for an aircraft turbine engine, limiting the retention of lubricant during pitching
US-2019211875-A1 · Jul 11, 2019 · US
Bearing device, and spidle device for machine tool
US-2019211874-A1 · Jul 11, 2019 · US
Motor unit
US-2019181720-A1 · Jun 13, 2019 · US
Casing for use in a turbofan engine and method of scavenging fluid therefrom
US-10316856-B2 · Jun 11, 2019 · US
Lubrication and scavenge system
US-2019170294-A1 · Jun 6, 2019 · US
Lubricating-grease pump and method for recovery of leakage grease of a lubricating-grease pump
US-2019170295-A1 · Jun 6, 2019 · US
Fixed support and oil collector system for ring gear
US-10281025-B2 · May 7, 2019 · US
Oil console equipment, rotary machine provided with oil console equipment, and method for recovering lubrication oil contained in exhaust gas
US-2019120086-A1 · Apr 25, 2019 · US
Pressure fed oil drain for gas turbine engine sump
US-10247036-B2 · Apr 2, 2019 · US
Machine element
US-2019091822-A1 · Mar 28, 2019 · US
Drain pan removable without the use of tools
US-2019078831-A1 · Mar 14, 2019 · US
Bearing device and exhaust turbine turbocharger
US-2019078732-A1 · Mar 14, 2019 · US
Engine Compartment Flammable Fluid Drainage System
US-2019048795-A1 · Feb 14, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16N31/00?
- CPC F16N31/00 is the Cooperative Patent Classification code for “Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus (oil separators for separating oil from exhaust steam F22G).”
- How many patents are filed under CPC F16N31/00 (Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus (oil separators for separating oil from exhaust steam F22G))?
- Our database includes 179 publications tagged with this CPC code.
- Is patent activity under CPC F16N31/00 growing?
- Publication counts under this code: 15 in 2024 vs 17 in 2025 (latest complete years).