Storage tank for liquid hydrogen with fill level indicator
US-12320472-B2 · Jun 3, 2025 · US
Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid
Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01F23/16 |
| Official title | Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid |
| Display label | Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid |
| Total patents | 31 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 5 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Level indicating device for tank
US-12292322-B2 · May 6, 2025 · US
Water-level measuring device using gear ratio
US-12270696-B2 · Apr 8, 2025 · US
Gas leakage detection system and gas leakage detection method
US-12136800-B2 · Nov 5, 2024 · US
Method and system of risk prevention based on energy of natural gas in a full cycle
US-12117328-B2 · Oct 15, 2024 · US
Volume Determination System, a Vehicle Having a Volume Determination System, and Methods of Operating Such a Vehicle
US-2024142289-A1 · May 2, 2024 · US
Volume Determination System, a Vehicle Having a Volume Determination System, and Methods of Operating Such a Vehicle
US-2024142287-A1 · May 2, 2024 · US
Water-level measuring device using gear ratio
US-2023341253-A1 · Oct 26, 2023 · US
Storage tank for liquid hydrogen with fill level indicator
US-2023119178-A1 · Apr 20, 2023 · US
Level indicating device for tank
US-2023112119-A1 · Apr 13, 2023 · US
Gas leakage detection system and gas leakage detection method
US-2022352697-A1 · Nov 3, 2022 · US
Sensor module and laundry treating apparatus having the same
US-11459693-B2 · Oct 4, 2022 · US
Water-level measuring device using gear ratio
US-2022221323-A1 · Jul 14, 2022 · US
Method and system of risk prevention based on energy of natural gas in a full cycle
US-2022214203-A1 · Jul 7, 2022 · US
Device for measuring a fill level of a flexible medicine reservoir
US-11241533-B2 · Feb 8, 2022 · US
Pneumatic probe
US-11193807-B2 · Dec 7, 2021 · US
Pneumatic probe
US-2021247223-A1 · Aug 12, 2021 · US
Frozen food product dispensing machine including mixing manifold
US-11076613-B2 · Aug 3, 2021 · US
Sensor assembly and liquid level detection device
US-10928264-B2 · Feb 23, 2021 · US
Method and system for detecting volumetric parameters of liquid in a container
US-10921172-B2 · Feb 16, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01F23/16?
- CPC G01F23/16 is the Cooperative Patent Classification code for “Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid.”
- How many patents are filed under CPC G01F23/16 (Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid)?
- Our database includes 31 publications tagged with this CPC code.
- Is patent activity under CPC G01F23/16 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).