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IPC Subgroup
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]

Introduced: January 1980

Last revised: January 2020

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 > Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]

Classification Context

Section:
PHYSICS
Class:
MEASURING; TESTING
Subclass:
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES

10 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 31/389 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

  1. SGCC(STATE GRID CORPORATION OF CHINA) 41,447
  2. CHINESE ACADEMY OF SCIENCES 32,952
  3. ROBERT BOSCH DE 16,470
  4. SAMSUNG ELECTRONICS COMPANY KR 10,052
  5. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 9,573
  6. ZHEJIANG UNIVERSITY 9,529
  7. GUANGDONG POWER GRID CORPORATION 8,615
  8. TSINGHUA UNIVERSITY 7,805
  9. HALLIBURTON ENERGY SERVICES GROUP US 7,796
  10. QUALCOMM US 7,171