Characterization of fluids with drag reducing additives in a couette device
US-10860753-B2 · Dec 8, 2020 · US
by drag-force, e.g. vane type or impact flowmeter
by drag-force, e.g. vane type or impact flowmeter · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01F1/28 |
| Official title | by drag-force, e.g. vane type or impact flowmeter |
| Display label | by drag-force, e.g. vane type or impact flowmeter |
| Total patents | 122 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 8 |
| 2017 | 11 |
| 2018 | 16 |
| 2019 | 9 |
| 2020 | 20 |
| 2021 | 16 |
| 2022 | 8 |
| 2023 | 10 |
| 2024 | 5 |
| 2025 | 7 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Sensor detection of the presence of an air core in a fluid conductor, and the flow rate of the fluid in the conductor
US-10830623-B2 · Nov 10, 2020 · US
Device having sensors for sensing measurement variables of a fluid, in particular for arranging in a fluid line
US-2020149937-A1 · May 14, 2020 · US
Flow sensor
US-10634538-B2 · Apr 28, 2020 · US
Diaphragm displacement flowmeter
US-10627268-B2 · Apr 21, 2020 · US
Sensor for an aerosol delivery device
US-10568359-B2 · Feb 25, 2020 · US
Air amount calculation device
US-2019390625-A1 · Dec 26, 2019 · US
Leak detector
US-10373471-B2 · Aug 6, 2019 · US
Method for manufacturing aircraft components optimized for flight and system and method for their design
US-2019185184-A1 · Jun 20, 2019 · US
Arrangement and method to sense flow using mechanical stress microsensors
US-10281302-B2 · May 7, 2019 · US
Fiber optic flow sensor
US-2019072419-A1 · Mar 7, 2019 · US
Flow regulation vent
US-10220179-B2 · Mar 5, 2019 · US
Fluid sampling system and fluid sensing device thereof
US-10215599-B2 · Feb 26, 2019 · US
Floating Base Vector Sensor
US-2019056473-A1 · Feb 21, 2019 · US
Leak detector
US-2019035252-A1 · Jan 31, 2019 · US
Leak detector
US-10127790-B2 · Nov 13, 2018 · US
Fluid sampling system and fluid sensing device thereof
US-2018306613-A1 · Oct 25, 2018 · US
Diaphragm displacement flowmeter
US-2018306614-A1 · Oct 25, 2018 · US
Gas detection flow rate controller
US-10077995-B1 · Sep 18, 2018 · US
Multi-directional capacitive flow sensor
US-10072957-B2 · Sep 11, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01F1/28?
- CPC G01F1/28 is the Cooperative Patent Classification code for “by drag-force, e.g. vane type or impact flowmeter.”
- How many patents are filed under CPC G01F1/28 (by drag-force, e.g. vane type or impact flowmeter)?
- Our database includes 122 publications tagged with this CPC code.
- Is patent activity under CPC G01F1/28 growing?
- Publication counts under this code: 5 in 2024 vs 7 in 2025 (latest complete years).