Method and apparatus for detecting the liquid level in a liquid reservoir
US-2018356271-A1 · Dec 13, 2018 · US
involving measurement of pressure
involving measurement of pressure · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01F22/02 |
| Official title | involving measurement of pressure |
| Display label | involving measurement of pressure |
| 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 | 14 |
| 2017 | 16 |
| 2018 | 32 |
| 2019 | 26 |
| 2020 | 29 |
| 2021 | 25 |
| 2022 | 27 |
| 2023 | 19 |
| 2024 | 29 |
| 2025 | 29 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Measuring device for measuring a volume variation of liquid received in a bottle
US-2018348036-A1 · Dec 6, 2018 · US
Volumetric measurement device, system and method
US-10126157-B2 · Nov 13, 2018 · US
Liquid measurement system for a tank
US-2018299315-A1 · Oct 18, 2018 · US
Method and apparatus for determining cooling gallery fill in a piston
US-2018299349-A1 · Oct 18, 2018 · US
Determining fluid leakage volume in pipelines
US-10082249-B2 · Sep 25, 2018 · US
Method and device for determining the filling mass of a cryogenically stored gas in a container
US-10078000-B2 · Sep 18, 2018 · US
Method and device for characterizing an injector
US-10077751-B2 · Sep 18, 2018 · US
Determining a volume of gas inside a liquid supply system
US-2018149510-A1 · May 31, 2018 · US
Real time detection of aspiration short shots using pressure signal
US-9962067-B2 · May 8, 2018 · US
Air charge determination method, engine control unit and internal combustion engine
US-2018100451-A1 · Apr 12, 2018 · US
Measuring device for measuring a volume variation of liquid
US-2018100752-A1 · Apr 12, 2018 · US
Determining fluid leakage volume in pipelines
US-2018087721-A1 · Mar 29, 2018 · US
Determining fluid leakage volume in pipelines
US-9897261-B2 · Feb 20, 2018 · US
Determining fluid leakage volume in pipelines
US-2018045377-A1 · Feb 15, 2018 · US
Apparatus and method for the dosed dispensing of a liquid
US-2018036760-A1 · Feb 8, 2018 · US
Liquid transfer systems and methods of calibration thereof by performing air aspirations
US-9874471-B2 · Jan 23, 2018 · US
Methods and systems for a universal wireless platform for asset monitoring
US-9870690-B2 · Jan 16, 2018 · US
Measuring the volume of fluid in a vessel
US-9846068-B2 · Dec 19, 2017 · US
Method and system for measuring volume of fluid drained from an air conditioning service unit
US-9823001-B2 · Nov 21, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01F22/02?
- CPC G01F22/02 is the Cooperative Patent Classification code for “involving measurement of pressure.”
- How many patents are filed under CPC G01F22/02 (involving measurement of pressure)?
- Our database includes 267 publications tagged with this CPC code.
- Is patent activity under CPC G01F22/02 growing?
- Publication counts under this code: 29 in 2024 vs 29 in 2025 (latest complete years).