4. Liquid purification or separation
  5. Processes
  6. Liquid/liquid solvent or colloidal extraction or diffusing...

Lalith K. Silva

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Hydrophilic semipermeable membranes based on copolymers of acryl

Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent

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Melt-spun polysulfone semipermeable membranes and methods...

Liquid purification or separation – Filter – Material
Reexamination Certificate

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Melt-spun polysulfone semipermeable membranes and methods...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Reexamination Certificate

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