B2 microglobulin adsorbent

Back flushable strainer device

Back washing fluid filters

Back-flush filtering apparatus, particularly for a house water s

Back-flushable filter

Back-flushable filter and pressure-regulator particularly useful

Back-flushable filter cartridge and method of back-flushing same

Back-flushable filter cartridge and method of back-flushing same

Back-flushable filter cartridge assemblies

Back-flushable filter having valved flusing pathway

Back-flushable filtration device and method of forming and using

Back-flushable spiral wound filter and methods of making and...

Back-flushing filter device for the filtration of highly viscous

Back-wash filter

Back-washable filter element comprised of perforated tubes

Back-washable filter for liquids

Back-washable spin-on oil filter

Back-water trap for a floor drain system

Backflow prevention for high pressure gradient systems

Backflow prevention for high pressure gradient systems