Sensor for level detection
US-2026092801-A1 · Apr 2, 2026 · US
the indication being based on the inclination of the surface of a liquid relative to its container
the indication being based on the inclination of the surface of a liquid relative to its container · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01C9/20 |
| Official title | the indication being based on the inclination of the surface of a liquid relative to its container |
| Display label | the indication being based on the inclination of the surface of a liquid relative to its container |
| Total patents | 32 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 5 |
| 2017 | 5 |
| 2018 | 7 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 1 |
| 2022 | 2 |
| 2024 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
An Appliance
US-2024285113-A1 · Aug 29, 2024 · US
Motion-sensitive field effect transistor, motion detection system, and method
US-11913971-B2 · Feb 27, 2024 · US
Surveying device
US-11448504-B2 · Sep 20, 2022 · US
Motion-sensitive field effect transistor, motion detection system, and method
US-2022268805-A1 · Aug 25, 2022 · US
Fluid volume determination enhanced by assessment of vehicle operative state
US-11209301-B2 · Dec 28, 2021 · US
Fluid volume determination enhanced by assessment of vehicle operative state
US-2020326221-A1 · Oct 15, 2020 · US
Surveying Instrument
US-2020318963-A1 · Oct 8, 2020 · US
Inclination sensor
US-10578433-B2 · Mar 3, 2020 · US
Measuring fuel in a fuel tank
US-10551237-B2 · Feb 4, 2020 · US
Tilt angle measuring device
US-10323940-B2 · Jun 18, 2019 · US
Method of designing container of liquid reflection inclination sensor, inclination sensor including the container, and method of producing inclination sensor including the container
US-10215561-B2 · Feb 26, 2019 · US
Surveying device
US-2019041207-A1 · Feb 7, 2019 · US
Method and device for measuring dip angle of oppositely crossly placed paired quartered ring-quartered circle nested polar plates
US-10145683-B2 · Dec 4, 2018 · US
Measuring device
US-10139224-B2 · Nov 27, 2018 · US
Tilt detecting device
US-10088310-B2 · Oct 2, 2018 · US
Inclination sensor
US-2018135981-A1 · May 17, 2018 · US
Sensing system and sensing method using the same
US-9945667-B2 · Apr 17, 2018 · US
Measuring fuel in a fuel tank
US-2018100755-A1 · Apr 12, 2018 · US
Measuring device and tilt sensor
US-9927229-B2 · Mar 27, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01C9/20?
- CPC G01C9/20 is the Cooperative Patent Classification code for “the indication being based on the inclination of the surface of a liquid relative to its container.”
- How many patents are filed under CPC G01C9/20 (the indication being based on the inclination of the surface of a liquid relative to its container)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC G01C9/20 growing?
- Publication counts under this code: 2 in 2022 vs 2 in 2024 (latest complete years).