Inventor
RAK STANLEY F
US10 patents
Patents
10 patentsUS4606943AAug 19, 1986
Method for preparation of semipermeable composite membrane
CULLIGAN INT CO91 citations95
US5254257AOct 19, 1993
Reclaiming of spent brine
CULLIGAN INT CO74 citations92
US5239285AAug 24, 1993
Low salt level sensor
CULLIGAN INT CO31 citations92
US4536845AAug 20, 1985
Self-programmable controller for water conditioner recharging
CULLIGAN INT CO31 citations92
US4299698ANov 10, 1981
Circuit and apparatus for controlling a water softener
CULLIGAN INT CO37 citations90
US5273070ADec 28, 1993
Water treatment apparatus
CULLIGAN INT CO33 citations89
US5073255ADec 17, 1991
Water treatment apparatus
CULLIGAN INT CO44 citations89
US4257887AMar 24, 1981
Circuit and apparatus for controlling a water softener
CULLIGAN INT CO27 citations81
US5061372AOct 29, 1991
Water treatment system with preservice rinse
CULLIGAN INT CO12 citations73
US4970003ANov 13, 1990
Water softening process with preservice rinse
CULLIGAN INT CO15 citations73