G01R 31/36 Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
Full Title
Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere ( testing line transmission systems H04B3/46; testing or measuring semiconductors or solid state devices during manufacture ) > Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
Filing statistics
CPC G01R 31/36 belongs to the parent subclass G01R, which recorded 383,760 patent applications worldwide between 2013 and 2023. Annual filings grew from 19,870 in 2013 to 47,277 in 2023 (+138%). The most active applicants in class G01 are CHINESE ACADEMY OF SCIENCES (21,460 applications), ROBERT BOSCH (17,801 applications) and SGCC(STATE GRID CORPORATION OF CHINA) (17,347 applications).
Source: EPO PATSTAT, worldwide filings
11 direct subcodes
Child Classifications
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- G01R 31/364 Battery terminal connectors with integrated measuring arrangements
- G01R 31/367 Software therefor, e.g. for battery testing using modelling or look-up tables
- G01R 31/371 with remote indication, e.g. on external chargers
- G01R 31/374 with means for correcting the measurement for temperature or ageing
- G01R 31/378 specially adapted for the type of battery or accumulator
- G01R 31/382 Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R 31/385 Arrangements for measuring battery or accumulator variables (for monitoring G01R31/382)
- G01R 31/389 Measuring internal impedance, internal conductance or related variables
- G01R 31/392 Determining battery ageing or deterioration, e.g. state of health
- G01R 31/396 Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
Top Applicants
Top 10 applicants by patent filingsfor class G01, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 21,460
- ROBERT BOSCH DE 17,801
- SGCC(STATE GRID CORPORATION OF CHINA) 17,347
- SAMSUNG ELECTRONICS COMPANY KR 13,192
- QUALCOMM US 9,900
- HALLIBURTON ENERGY SERVICES GROUP US 9,742
- PHILIPS ELECTRONICS NL 7,249
- MITSUBISHI ELECTRIC CORPORATION JP 6,503
- ZHEJIANG UNIVERSITY 6,414
- DENSO CORPORATION JP 6,382