http://nationmultimedia.com/2007/02/26/headlines/headlines_30027942.php
According to The Nation magazine, "Thailand will propose that 200 year-old inscriptions and statues that teach traditional Thai yoga at Wat Pra Chetupon Wimolmangalaram be included in the Unesco Memory of the World (MOW) Programme in 2009."
Thailand is trying to do what India tried to do, too late--save its cultural heritage from profitable pirating from other cultures. Still, it didn't work in India because it was extremely difficult to patent the poses. Who owns the poses?
Even yogis who like to sue can only patent sequences, not poses themselves. At least in America.