DIFF Subgroup
H01M 10/12 Construction or manufacture
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Secondary cells; Manufacture thereof > Lead-acid accumulators > Construction or manufacture
CPC:
Secondary cells; Manufacture thereof > Lead-acid accumulators (semi-lead accumulators H01M10/20) > Construction or manufacture
CPC subdivides this area 4x more granularly than IPC with 6 additional codes.
6 codes are CPC-only extensions.
IPC defines codes here since 1974.
Child Classifications
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- H01M 10/14 Assembling a group of electrodes or separators since 1974 IPC+CPC Available in IPC and CPC
- H01M 10/16 Suspending or supporting electrodes or groups of electrodes in the case since 1974 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class H01,2013–2023, worldwide · Source: EPO PATSTAT
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
- SAMSUNG ELECTRONICS COMPANY KR 42,206
- LG CHEM KR 21,383
- APPLIED MATERIALS US 20,441
- LG ENERGY SOLUTION KR 20,279
- SAMSUNG DISPLAY KR 19,725
- CHINESE ACADEMY OF SCIENCES 19,400
- TOYOTA MOTOR CORPORATION 18,819
- SGCC(STATE GRID CORPORATION OF CHINA) 18,082
- TOKYO ELECTRON JP 17,634
Top Applicants (CPC)
Class H01,2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG ELECTRONICS COMPANY KR 37,897
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 36,116
- APPLIED MATERIALS US 21,640
- LG ENERGY SOLUTION KR 20,770
- LG CHEM KR 19,835
- TOKYO ELECTRON JP 18,519
- ROBERT BOSCH DE 14,595
- INTEL CORPORATION US 13,580
- MURATA MANUFACTURING COMPANY JP 12,151
- SAMSUNG SDI COMPANY KR 12,080