First go to place when researching what a company does, do they have exclusive rights to the technology? Patent search.
https://docs.google.com/viewer?url=p.../US8497905.pdf
https://docs.google.com/viewer?url=p...0130235199.pdf
Let me know if the links doesn't work, but its good they have patented process for this. Just another added benefit IMHO.
DISC: Holding and have done my homework.