4. Liquid purification or separation
  5. Filter
  6. Material

Joachim Kiefer

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Asymmetric polymer film, method for the production and...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate

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Membranes having improved mechanical properties, for use in...

Stock material or miscellaneous articles – Structurally defined web or sheet – Physical dimension specified
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Method for producing a membrane from a crosslinked polymer...

Gas separation: apparatus – Apparatus for selective diffusion of gases
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Method for producing a membrane made of bridged polymer and...

Liquid purification or separation – Filter – Material
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Multilayer electrolyte membrane

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
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Profile ID: LFUS-PAI-P-2415643

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