Multivariate type assay methods are disclosed which comprise co-immobilizing different groups of ligands on respective discrete areas of a solid support surface, sequentially contacting the different areas with single or multiple analytes, detecting interactions of the analytes with the ligand groups,...http://www.google.es/patents/US20040161860?utm_source=gb-gplus-sharePatente US20040161860 - Assay with co-immobilized ligands
