Complex filter and water purifier including complex filter

This invention describes a water filter designed to purify water. It works by passing water through a housing containing an antibacterial hollow fiber membrane, activated carbon fibers, ion-exchange fibers, and two distinct layers of activated carbon. The claims specify that the activated carbon must be granular with very precise characteristics, and the activated carbon fiber layers are formed as blocks or felt patterns.

Why it matters: Filed before advanced material science made precisely specified filter components more cost-effective. The claims detail specific carbon and fiber properties now easier to produce at scale.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedCustom membranes, specific carbon, fiber manufacturing

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