Flowmeter having a fitting assembly with drainage reservoir, tap, and plug
US-10859424-B2 · Dec 8, 2020 · US
by gauge glasses or other apparatus involving a window or transparent tube for directly observing the level to be measured or the level of a liquid column in free communication with the main body of the liquid
by gauge glasses or other apparatus involving a window or transparent tube for directly observing the level to be measured or the level of a liquid column in free communication with the main body of the liquid · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01F23/02 |
| Official title | by gauge glasses or other apparatus involving a window or transparent tube for directly observing the level to be measured or the level of a liquid column in free communication with the main body of the liquid |
| Display label | by gauge glasses or other apparatus involving a window or transparent tube for directly observing the level to be measured or the level of a liquid column in free communication with the main body of the liquid |
| Total patents | 168 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 9 |
| 2017 | 12 |
| 2018 | 13 |
| 2019 | 13 |
| 2020 | 17 |
| 2021 | 14 |
| 2022 | 19 |
| 2023 | 13 |
| 2024 | 25 |
| 2025 | 16 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Determining a fill level of a hydrodynamic clutch
US-10794749-B2 · Oct 6, 2020 · US
Spray gun cups, receptacles, and methods of use
US-10688510-B2 · Jun 23, 2020 · US
Device for packaging and dispensing a product, notably a cosmetic product
US-10561221-B2 · Feb 18, 2020 · US
Thermal adjusted hydraulic fluid gage
US-2019390995-A1 · Dec 26, 2019 · US
Extracorporeal circulation apparatus
US-2019351128-A1 · Nov 21, 2019 · US
System and method for syringe fluid fill verification and image recognition of power injector system features
US-10420902-B2 · Sep 24, 2019 · US
Small-sized construction machine
US-10392784-B2 · Aug 27, 2019 · US
Device for packaging and dispensing a product, notably a cosmetic product
US-2019231053-A1 · Aug 1, 2019 · US
Oil flow switch and lubrication system with the same for a refrigeration system
US-2019203882-A1 · Jul 4, 2019 · US
Turbo machine having a sealing unit, maintenance method, and associated maintenance device
US-10330109-B2 · Jun 25, 2019 · US
Assay Cartridges and Methods of Using the Same
US-2019178787-A1 · Jun 13, 2019 · US
Determining a fill level of a hydrodynamic clutch
US-2019128724-A1 · May 2, 2019 · US
Indication type level indicator including total reflection prism
US-10234326-B2 · Mar 19, 2019 · US
System and method for syringe fluid fill verification and image recognition of power injector system features
US-10201666-B2 · Feb 12, 2019 · US
Assay cartridges and method of using the same
US-10184884-B2 · Jan 22, 2019 · US
Spray gun cups, receptacles, and methods of use
US-2019009290-A1 · Jan 10, 2019 · US
Portable blood viscostity measurement apparatus
US-2018340876-A1 · Nov 29, 2018 · US
System and Method for Syringe Fluid Fill Verification and Image Recognition of Power Injector System Features
US-2018296771-A1 · Oct 18, 2018 · US
Small-Sized Construction Machine
US-2018291590-A1 · Oct 11, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01F23/02?
- CPC G01F23/02 is the Cooperative Patent Classification code for “by gauge glasses or other apparatus involving a window or transparent tube for directly observing the level to be measured or the level of a liquid column in free communication with the main body of the liquid.”
- How many patents are filed under CPC G01F23/02 (by gauge glasses or other apparatus involving a window or transparent tube for directly observing the level to be measured or the level of a liquid column in free communication with the main body of the liquid)?
- Our database includes 168 publications tagged with this CPC code.
- Is patent activity under CPC G01F23/02 growing?
- Publication counts under this code: 25 in 2024 vs 16 in 2025 (latest complete years).