Quality control system for analyzing the quality of a battery cell through analysis of a physical property of a gas formed during a cell formation process and a method of analyzing the same
US-2022404325-A1 · Dec 22, 2022 · US
without measurement of battery voltage
without measurement of battery voltage · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01R31/3832 |
| Official title | without measurement of battery voltage |
| Display label | without measurement of battery voltage |
| Total patents | 100 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 12 |
| 2018 | 7 |
| 2019 | 12 |
| 2020 | 12 |
| 2021 | 6 |
| 2022 | 14 |
| 2023 | 9 |
| 2024 | 10 |
| 2025 | 6 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Battery with switched accumulators
US-11532941-B2 · Dec 20, 2022 · US
Battery polarity determination circuit, charger, and electronic device
US-2021376617-A1 · Dec 2, 2021 · US
Method for monitoring an energy store in a vehicle electrical system
US-2021339652-A1 · Nov 4, 2021 · US
State of health estimation for batteries
US-11101669-B2 · Aug 24, 2021 · US
Current protection system for energy storage system
US-2021239767-A1 · Aug 5, 2021 · US
Fractional depletion estimation for battery condition metrics
US-11007895-B2 · May 18, 2021 · US
Electricity storage device testing method and electricity storage device manufacturing method
US-11011785-B2 · May 18, 2021 · US
Method and system for improving battery capacity estimations
US-2020393514-A1 · Dec 17, 2020 · US
Battery with switched accumulators
US-2020373765-A1 · Nov 26, 2020 · US
Systems and methods for monitoring vehicle power systems
US-10814742-B2 · Oct 27, 2020 · US
Apparatus and method for calculating soh of battery pack
US-2020264237-A1 · Aug 20, 2020 · US
Managing apparatus for electrochemical element
US-10739409-B2 · Aug 11, 2020 · US
Energy storage device management apparatus, energy storage device module, vehicle, and energy storage device management method
US-10712393-B2 · Jul 14, 2020 · US
Methods and apparatus for measuring battery characteristics
US-10705153-B2 · Jul 7, 2020 · US
Method and device for monitoring a temperature of a battery system
US-10700391-B2 · Jun 30, 2020 · US
Method and device for monitoring state of charge and state of health of lithium-ion battery
US-10663525-B2 · May 26, 2020 · US
Fractional depletion estimation for battery condition metrics
US-2020139846-A1 · May 7, 2020 · US
Electricity storage device testing method and electricity storage device manufacturing method
US-2020067147-A1 · Feb 27, 2020 · US
Fractional depletion estimation for battery condition metrics
US-10556514-B2 · Feb 11, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01R31/3832?
- CPC G01R31/3832 is the Cooperative Patent Classification code for “without measurement of battery voltage.”
- How many patents are filed under CPC G01R31/3832 (without measurement of battery voltage)?
- Our database includes 100 publications tagged with this CPC code.
- Is patent activity under CPC G01R31/3832 growing?
- Publication counts under this code: 10 in 2024 vs 6 in 2025 (latest complete years).