H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Description
H01M encompasses electrochemical energy conversion devices and processes that directly transform chemical energy into electrical energy. This subclass covers batteries, fuel cells, supercapacitors, and related electrochemical systems across all chemistries and configurations. It includes cell and battery design, electrode materials, electrolytes, manufacturing processes, performance testing, and safety features for primary, secondary (rechargeable), and specialized energy storage applications.
Filing statistics
CPC subclass H01M recorded 641,865 patent applications worldwide between 2013 and 2023. Annual filings grew from 33,251 in 2013 to 96,378 in 2023 (+190%). The most active applicants in class H01 are SAMSUNG ELECTRONICS COMPANY (37,897 applications), TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY (36,116 applications) and APPLIED MATERIALS (21,640 applications).
Source: EPO PATSTAT, worldwide filings
12 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- H01M 10/00 Secondary cells; Manufacture thereof
- H01M 12/00 Hybrid cells; Manufacture thereof (hybrid capacitors H01G11/00)
- H01M 14/00 Electrochemical current or voltage generators not provided for in groups H01M6/00 - H01M12/00; Manufacture thereof
- H01M 16/00 Structural combinations of different types of electrochemical generators
- H01M 2200/00 Safety devices for primary or secondary batteries
- H01M 2220/00 Batteries for particular applications
- H01M 2250/00 Fuel cells for particular applications; Specific features of fuel cell system
- H01M 2300/00 Electrolytes
- H01M 4/00 Electrodes
- H01M 50/00 Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M 6/00 Primary cells; Manufacture thereof
- H01M 8/00 Fuel cells; Manufacture thereof
Top Applicants
Top 10 applicants by patent filingsfor 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