Device for determining the fill level of a liquid in a measurement tube, and flowmeter having a device of this type
US-2021123786-A1 · Apr 29, 2021 · US
wherein the flow is in an open channel
wherein the flow is in an open channel · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01F1/002 |
| Official title | wherein the flow is in an open channel |
| Display label | wherein the flow is in an open channel |
| Total patents | 97 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 2 |
| 2017 | 12 |
| 2018 | 14 |
| 2019 | 12 |
| 2020 | 11 |
| 2021 | 9 |
| 2022 | 9 |
| 2023 | 8 |
| 2024 | 5 |
| 2025 | 4 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Flow rate determination based on limited observations
US-2020378819-A1 · Dec 3, 2020 · US
Miniature flow sensor with shroud
US-10837812-B2 · Nov 17, 2020 · US
Apparatus and method for creating inferential process flow measurements using other process measurements
US-10823598-B2 · Nov 3, 2020 · US
Measuring device
US-10739172-B2 · Aug 11, 2020 · US
Measuring pipe press fitted in a pipe hole of a circuit board with a guide provided on an inner wall of a case body
US-10712186-B2 · Jul 14, 2020 · US
Acoustic camera systems and methods for large scale flow analysis in turbid field environments
US-2020217702-A1 · Jul 9, 2020 · US
Ultrasonic Gas Flowmeter
US-2020209028-A1 · Jul 2, 2020 · US
Measuring arrangement
US-10641635-B2 · May 5, 2020 · US
Method and system for analyzing velocity distribution of water flow in a water body
US-10620230-B2 · Apr 14, 2020 · US
River discharge and depth estimation
US-10584988-B2 · Mar 10, 2020 · US
Single-beam radar level and velocity sensing
US-10571315-B2 · Feb 25, 2020 · US
Flow measuring instrument comprising a wind velocity sensor
US-10495500-B2 · Dec 3, 2019 · US
Electromagnetic flow meter
US-2019285443-A1 · Sep 19, 2019 · US
Flow meter with adaptable beam characteristics
US-10408648-B2 · Sep 10, 2019 · US
Clamp-on ultrasonic sensor for use in an ultrasonic flow-rate measuring device, and ultrasonic flow-rate measuring device
US-2019257679-A1 · Aug 22, 2019 · US
Fluid quantification instrument and method
US-10309808-B2 · Jun 4, 2019 · US
Device for observing abyssal flow change based on differential pressure measurement
US-10302471-B1 · May 28, 2019 · US
Flow meter with adaptable beam characteristics
US-10295385-B2 · May 21, 2019 · US
Method and device for acquiring canal flow rate, and computer-readable storage medium
US-2019145803-A1 · May 16, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01F1/002?
- CPC G01F1/002 is the Cooperative Patent Classification code for “wherein the flow is in an open channel.”
- How many patents are filed under CPC G01F1/002 (wherein the flow is in an open channel)?
- Our database includes 97 publications tagged with this CPC code.
- Is patent activity under CPC G01F1/002 growing?
- Publication counts under this code: 5 in 2024 vs 4 in 2025 (latest complete years).