Electric-powered lubricator, and method for calibrating electric-powered lubricator
US-12595882-B2 · Apr 7, 2026 · US
Proportioning devices (liquid meters G01F)
Proportioning devices (liquid meters G01F) · 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 | F16N27/00 |
| Official title | Proportioning devices (liquid meters G01F) |
| Display label | Proportioning devices (liquid meters G01F) |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fluid flow metering device for aircraft shaft(s)
US-12535183-B2 · Jan 27, 2026 · US
Fluid flow metering device for aircraft shaft(s)
US-2025237349-A1 · Jul 24, 2025 · US
Insertion amount grasping device
US-12158237-B2 · Dec 3, 2024 · US
Electric-powered lubricator, and method for calibrating electric-powered lubricator
US-2024318776-A1 · Sep 26, 2024 · US
Progressive distributor for lubricant
US-11898695-B2 · Feb 13, 2024 · US
System for lubricating cables or the like
US-11879590-B2 · Jan 23, 2024 · US
Injector piston with improved seal
US-11774040-B2 · Oct 3, 2023 · US
System for lubricating cables or the like
US-2023288024-A1 · Sep 14, 2023 · US
Insertion amount grasping device
US-2023194048-A1 · Jun 22, 2023 · US
Lubricant fitting unit with integrated lubricant flowmeter
US-11619347-B2 · Apr 4, 2023 · US
System for lubricating cables or the like
US-11555578-B2 · Jan 17, 2023 · US
Injector piston with improved seal
US-2022074545-A1 · Mar 10, 2022 · US
Progressive distributor for lubricant
US-2021317949-A1 · Oct 14, 2021 · US
Lubricant fitting unit with integrated lubricant flowmeter
US-2021190265-A1 · Jun 24, 2021 · US
System and method for supplying lubrication fluid to at least one member of an aircraft propulsion assembly
US-10934889-B2 · Mar 2, 2021 · US
System for lubricating cables or the like
US-2020224821-A1 · Jul 16, 2020 · US
Diaphragm seal injector
US-10711943-B2 · Jul 14, 2020 · US
Lubrication device for a turbine engine
US-10677095-B2 · Jun 9, 2020 · US
Threaded lube restrictor for low flow applications
US-10612722-B2 · Apr 7, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16N27/00?
- CPC F16N27/00 is the Cooperative Patent Classification code for “Proportioning devices (liquid meters G01F).”
- How many patents are filed under CPC F16N27/00 (Proportioning devices (liquid meters G01F))?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC F16N27/00 growing?
- Publication counts under this code: 4 in 2024 vs 1 in 2025 (latest complete years).