(under subclass 687) Subject matter in which a semipermeable solid barrier or diaphragm (e.g., ion exchange membrane, etc.) is used in the material treatment; usually the barrier or diaphragm is placed between the electrodes in an electrolytic cell to provide separate compartments.
SEE OR SEARCH THIS CLASS, SUBCLASS:
703, for electrolytic treatment of organic material using a membrane.
746+, for electrolytic treatment of water, sewage, or other waste water using a membrane.
SEE OR SEARCH CLASS
204, Chemistry: Electrical and Wave Energy,
450+, and particularly subclasses 518+ for electrophoretic or electro-osmotic barrier separation.
