Right off company website
MIT concluded "Proof-of-Principle" testing in 1999, during 2005 prototype systems were constructed that demonstrated the ability to detect and identify the pathogenic microbes Cryptosporidium, Giardia, E. coli, Listeria, and Salmonella. Subsequently, two patents were awarded which will be further expanded as research and development progresses. During the later part of 2006 a small number of pre-production units were assembled - initial customer installations began in mid 2007.
IMO