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IPC Subgroup
H01M 10/42

Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells

Introduced: July 1974

Last revised: January 2006

Full Title

Secondary cells; Manufacture thereof > Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC ELEMENTS
Subclass:
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

Related Keywords

CLEANING electric batteriesSERVICING of electric batteries

4 direct subcodes

Child Classifications

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  • H01M 10/44 Methods for charging or discharging
  • H01M 10/46 Accumulators structurally combined with charging apparatus
  • H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
  • H01M 10/52 Removing gases inside the secondary cell, e.g. by absorption

Top Applicants

Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
  2. SAMSUNG ELECTRONICS COMPANY KR 42,206
  3. LG CHEM KR 21,383
  4. APPLIED MATERIALS US 20,441
  5. LG ENERGY SOLUTION KR 20,279
  6. SAMSUNG DISPLAY KR 19,725
  7. CHINESE ACADEMY OF SCIENCES 19,400
  8. TOYOTA MOTOR CORPORATION 18,819
  9. SGCC(STATE GRID CORPORATION OF CHINA) 18,082
  10. TOKYO ELECTRON JP 17,634