Systems and methods for tracking liquid consumption for a bottle assembly
US-12467777-B2 · Nov 11, 2025 · US
having only one measuring chamber
having only one measuring chamber · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01F3/38 |
| Official title | having only one measuring chamber |
| Display label | having only one measuring chamber |
| Total patents | 25 |
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 | 1 |
| 2017 | 3 |
| 2019 | 6 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 4 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods for tracking liquid consumption for a bottle assembly
US-2025290783-A1 · Sep 18, 2025 · US
Pulse shot-type flow rate control device, pulse shot-type flow rate control method, and program
US-11829167-B2 · Nov 28, 2023 · US
Pulse shot-type flow rate control device, pulse shot-type flow rate control method, and program
US-2023259146-A1 · Aug 17, 2023 · US
Instruments, systems, and methods for measuring liquid flow through channels
US-2023191405-A1 · Jun 22, 2023 · US
Fluid flow simulation devices, fluid heating chambers, and associated methods
US-2023101595-A1 · Mar 30, 2023 · US
Flow rate measuring method and flow rate measuring device
US-11326921-B2 · May 10, 2022 · US
Systems and methods for accurate measurement of gas from wet gas wells
US-11045762-B2 · Jun 29, 2021 · US
Automated volumetric device
US-2021033634-A1 · Feb 4, 2021 · US
Gas supply device capable of measuring flow rate, flowmeter, and flow rate measuring method
US-10895484-B2 · Jan 19, 2021 · US
Method of determining flow rate of a gas in a substrate processing system
US-10876870-B2 · Dec 29, 2020 · US
Method of inspecting flow rate measuring system
US-10859426-B2 · Dec 8, 2020 · US
Flow rate measuring method and flow rate measuring device
US-2020011720-A1 · Jan 9, 2020 · US
Systems and methods for accurate measurement of gas from wet gas wells
US-2019321775-A1 · Oct 24, 2019 · US
Systems and methods for accurate measurement of gas from wet gas wells
US-10384161-B2 · Aug 20, 2019 · US
Method of determining flow rate of gas
US-2019212176-A1 · Jul 11, 2019 · US
Method of inspecting flow rate measuring system
US-2019063987-A1 · Feb 28, 2019 · US
Gas flow monitoring method and gas flow monitoring apparatus
US-10184185-B2 · Jan 22, 2019 · US
Gas supply device capable of measuring flow rate, flowmeter, and flow rate measuring method
US-2019017855-A1 · Jan 17, 2019 · US
Gas flow monitoring method and gas flow monitoring apparatus
US-2017167026-A1 · Jun 15, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01F3/38?
- CPC G01F3/38 is the Cooperative Patent Classification code for “having only one measuring chamber.”
- How many patents are filed under CPC G01F3/38 (having only one measuring chamber)?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC G01F3/38 growing?
- Publication counts under this code: 4 in 2023 vs 2 in 2025 (latest complete years).