Reciprocating sprayer for a cylindrical wastewater screen

Recovering bitumen from large water surfaces

Recyclable photographic filters

Reduction of membrane fouling by surface fluorination

Regenerated cellulose membrane and processes for preparation the

Reinforced capillary membranes and process for manufacturing...

Reinforced ceramic filter candle and method of making same

Reinforced coalescing cell

Reinforced filter tube and method of making the same

Reinforced ion exchange membrane and a process for producing the

Reinforced, three zone microporous membrane

Reinforced, three zone microporous membrane

Rejection enhancing coatings for reverse osmosis membranes

Remote filter

Removable cartridge assembly for filtering bi-directional...

Removable cartridge filter

Removable filter cloth for a leaf filter of a pressure vessel

Removable fuel tank filter

Removable shield in an engine oil strainer

Removal of contaminants from a lipophilic fluid