Adya Clarity's patent number
The Adya Clarity (AC) is Made in USA. Also, granted a patent in 1988 which possesses an U.S. patent number: 4,776,963.
You may also read more about the technology by visiting the link: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/PTO/srchnum.htm&r=1&f=G&l=50&s1=4,776,963.PN.&OS=PN/4,776,963&RS=PN/4,776,963
AC is also approved/licensed/registered under Health Canada as Adya Minerals (special name), but made with the same exact ingredients. The Natur...