Multiwell plates commonly used for immunoassay are increased in capacity and adapted for ease and speed of testing by forming a plurality of solid posts in each well of a plate. The posts and plate material and the dimensions of the posts are chosen to allow the immobilization of ligand patterns on an...http://www.google.ca/patents/US7799558?utm_source=gb-gplus-sharePatent US7799558 - Ligand binding assays on microarrays in closed multiwell plates
