Allen Hirsh

External gradient chromatofocusing 7,790,025
Multi-component, simultaneous, independent multi-gradient system for liquid chromatography 7,425,263
Differential spectral topographic analysis (DISTA) 6,272,436
Differential spectral topographic analysis (DISTA) 6,085,153
Modified intrinsic state spectral analysis apparatus and method. 5,612,783