A ground fault protection circuit for plural loads connected across a power source with plural branches which can be used where the loads are unbalanced. Each branch includes a ground fault circuit interrupter device that has a common line for the electronics of the GFCI separate from the ...http://www.google.ca/patents/US5786971?utm_source=gb-gplus-sharePatent US5786971 - Ground fault protection circuit for multiple loads with separate GFCI branches and a common neutral for the GFCI electronics 
