• All sections
• H - Electricity
• H02J - Circuit arrangements or systems for supplying or distributing electric powersystems for storing electric energy
• H02J 9/08 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over requiring starting of a prime-mover

Patent holdings for IPC class H02J 9/08

Total number of patents in this class: 179

10-year publication summary

Principal owners for this class