• All sections
• H - Electricity
• H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys

Patent holdings for IPC class H01M 4/38

Total number of patents in this class: 12420

10-year publication summary

Principal owners for this class