Technology Topic
Battery Technology Patent Classification
Battery patents concentrate in H01M, one of the highest-volume subclasses of the entire classification: electrochemical cells, lithium-ion chemistry, fuel cells and battery packs all classify here.
The systems side, charging circuits, battery management in vehicles and grid storage, sits in H02J for electric power supply and networks.
The classification codes that matter
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO…
Electrochemical energy conversion: cells, lithium-ion batteries, fuel cells, electrodes and packs.
2018 → 2023: 74,706 → 137,515 filings (+84 %)
ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING…
Power networks and charging: battery management, charging systems and grid integration.
2018 → 2023: 55,952 → 78,393 filings (+40 %)
Who files here: top applicants
- 1 SGCC(STATE GRID CORPORATION OF CHINA) 72,578
- 2 SAMSUNG ELECTRONICS COMPANY (KR) 48,032
- 3 TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY (TW) 43,574
- 4 TOYOTA MOTOR CORPORATION 28,283
- 5 LG CHEM (KR) 21,383
IPC filings 2013–2023, aggregated across the codes above. Source: EPO PATSTAT.
Not sure which code fits?
Describe your technology in plain language and get matching IPC and CPC codes: