1
Henry K Tom, Gerald L Rowley: Concentrating zone method in heterogeneous immunoassays. Syva Company, Bertram I Rowland, December 28, 1982: US04366241 (765 worldwide citation)

Method and apparatus are provided for performing immunoassays employing a device comprising a relatively small test zone referred to as an immunosorbing zone, and a relatively large liquid absorbing zone in liquid receiving relationship with said immunosorbing zone. The immunosorbing zone includes a ...


2
Richard B Mortensen, Henry K Tom: Assay having improved dose response curve. Quidel Corporation, Townsend and Townsend and Crew, July 30, 1996: US05541069 (44 worldwide citation)

An assay for determining the presence of a threshold concentration of an analyte in a sample comprises first reacting the sample with an amount of anti-analyte selected to reduce the free analyte to a marginally detectable concentration. The sample is then contacted with anti-analyte immobilized on ...