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GB9702022D0
|
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Membrane
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GB9701952D0
|
|
Membrane
|
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GB9501575D0
|
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Process for producing composite semi-permeable membranes suitable for use in reverse osmosis procedures; membranes produced thereby
|
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GB9410429D0
|
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Filtration
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GB9409943D0
|
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Fluid transfer means, filtration apparatus including the fluid transfer means and a method of operation of filtration apparatus
|
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GB8825839D0
|
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Tubular membrane cross-flow filtration module
|
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GB8825837D0
|
|
Tubular membrane cross-flow filtration module
|
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EP0313354A1
|
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Reverse osmosis membranes and process for their production
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