An apparatus for filtering multiple biological samples using a filter membrane is disclosed. The apparatus comprises a well plate having at least one well adapted to contain the sample media. The apparatus further comprises a vacuum-clamping feature for placing the filter membrane in sealable contact...http://www.google.es/patents/US5108603?utm_source=gb-gplus-sharePatente US5108603 - Self-contained vacuum clamped multi-sample media filtration apparatus and method
Self-contained vacuum clamped multi-sample media filtration apparatus and method
