Patent on an Information security management module of remotely controlled Smart Meters

Patent on Gas meters high voltage protection circuit (202678925 U)

Patent on Gas meters power-off protection circuit (CN202678930 U)

Patent on IC card smart gas meter Information Security Management Module (CN103093139 B)

Patent on IC smart water meter Information Security Management Module (CN103198573 B)

Patent on Internet of things intelligent gas meter Information Security Management Module (CN103152176 B)

Patent on Internet of things smart water meter Information Security Management Module (CN103152176 B)