Fluid pressure loop
US-10845001-B2 · Nov 24, 2020 · US
Central lubrication systems
Central lubrication systems · 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 | F16N7/385 |
| Official title | {Central lubrication systems} |
| Display label | Central lubrication systems |
| Total patents | 114 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 7 |
| 2018 | 20 |
| 2019 | 12 |
| 2020 | 12 |
| 2021 | 15 |
| 2022 | 8 |
| 2023 | 10 |
| 2024 | 12 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Valve Control and/or Lubrication System
US-2020355321-A1 · Nov 12, 2020 · US
Gas turbine engine lubrication system
US-10815887-B2 · Oct 27, 2020 · US
Lubrication injector with energy harvesting
US-10801667-B2 · Oct 13, 2020 · US
Damper check valve
US-10794283-B2 · Oct 6, 2020 · US
Hydraulic changeover valve
US-10788132-B2 · Sep 29, 2020 · US
Autofill shutoff valve
US-10781971-B2 · Sep 22, 2020 · US
Generators operable with shared oil systems and independent oil systems
US-2020295624-A1 · Sep 17, 2020 · US
Vent valve
US-10774988-B2 · Sep 15, 2020 · US
Centerfill of lubricant reservoir
US-10731791-B2 · Aug 4, 2020 · US
Cooling and Lubrication System for a Motor Vehicle Drive Unit
US-2020114848-A1 · Apr 16, 2020 · US
Reservoir overfill protection
US-10527228-B2 · Jan 7, 2020 · US
Integrated lubrication pump
US-10487826-B2 · Nov 26, 2019 · US
Piston pump and seal ring
US-2019316582-A1 · Oct 17, 2019 · US
Tank assembly
US-2019309684-A1 · Oct 10, 2019 · US
Construction machine
US-2019301134-A1 · Oct 3, 2019 · US
Oil supply system of vehicle and control method thereof
US-10414363-B2 · Sep 17, 2019 · US
Vehicle adaptive automatic lubrication
US-2019263341-A1 · Aug 29, 2019 · US
Oil circuit of an aircraft engine
US-2019226358-A1 · Jul 25, 2019 · US
Gas turbine engine oil circulation
US-2019218936-A1 · Jul 18, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16N7/385?
- CPC F16N7/385 is the Cooperative Patent Classification code for “Central lubrication systems.”
- How many patents are filed under CPC F16N7/385 (Central lubrication systems)?
- Our database includes 114 publications tagged with this CPC code.
- Is patent activity under CPC F16N7/385 growing?
- Publication counts under this code: 12 in 2024 vs 8 in 2025 (latest complete years).