Improvement relating to fluid flow measurement
US-2024094036-A1 · Mar 21, 2024 · US
specially adapted for gas meters (G01F25/11 - G01F25/14, G01F25/17 take precedence)
specially adapted for gas meters (G01F25/11 - G01F25/14, G01F25/17 take precedence) · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01F25/15 |
| Official title | {specially adapted for gas meters (G01F25/11 - G01F25/14, G01F25/17 take precedence)} |
| Display label | specially adapted for gas meters (G01F25/11 - G01F25/14, G01F25/17 take precedence) |
| Total patents | 267 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 13 |
| 2017 | 24 |
| 2018 | 17 |
| 2019 | 25 |
| 2020 | 29 |
| 2021 | 21 |
| 2022 | 28 |
| 2023 | 29 |
| 2024 | 42 |
| 2025 | 24 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Modular apparatus for testing gas meters
US-2018224319-A1 · Aug 9, 2018 · US
Methods and apparatus for wide range mass flow verification
US-10031004-B2 · Jul 24, 2018 · US
Fluid analysis device
US-10024700-B2 · Jul 17, 2018 · US
Method and apparatus for furnishing a filtered air system state variable in a control unit of an internal combustion engine
US-10018532-B2 · Jul 10, 2018 · US
Gas flow control
US-2018174809-A1 · Jun 21, 2018 · US
Methods and Apparatus for Wide Range Mass Flow Verification
US-2018172491-A1 · Jun 21, 2018 · US
Using localized flow characteristics on electronic flow meter to quantify volumetric flow
US-2018143055-A1 · May 24, 2018 · US
Upstream volume mass flow verification systems and methods
US-9952078-B2 · Apr 24, 2018 · US
Flow master for apparatus testing
US-9925876-B2 · Mar 27, 2018 · US
Method and device for diagnosing an auxiliary heating function of an air mass sensor
US-9885600-B2 · Feb 6, 2018 · US
Methods, systems, and apparatus for mass flow verification based on choked flow
US-2017370763-A1 · Dec 28, 2017 · US
Wireless flow restrictor of a flowmeter
US-2017336810-A1 · Nov 23, 2017 · US
Ultrasonic flowmeter and method for measuring flow
US-9816847-B2 · Nov 14, 2017 · US
Self-calibrating mechanism and self-calibrating method for flow rate sensor, and diagnostic mechanism and diagnostic method for fluid sensor
US-9797765-B2 · Oct 24, 2017 · US
Flow rate verification unit
US-2017299420-A1 · Oct 19, 2017 · US
Systems and methods for analyzing fluid from a separator
US-9778091-B2 · Oct 3, 2017 · US
Methods for monitoring a flow controller coupled to a process chamber
US-9772629-B2 · Sep 26, 2017 · US
Air flow rate adjusting apparatus
US-2017254285-A1 · Sep 7, 2017 · US
System and method for using a rate of decay measurement for real time measurement and correction of zero offset and zero drift of a mass flow controller or mass flow meter
US-9739655-B2 · Aug 22, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01F25/15?
- CPC G01F25/15 is the Cooperative Patent Classification code for “specially adapted for gas meters (G01F25/11 - G01F25/14, G01F25/17 take precedence).”
- How many patents are filed under CPC G01F25/15 (specially adapted for gas meters (G01F25/11 - G01F25/14, G01F25/17 take precedence))?
- Our database includes 267 publications tagged with this CPC code.
- Is patent activity under CPC G01F25/15 growing?
- Publication counts under this code: 42 in 2024 vs 24 in 2025 (latest complete years).