In 1997, an American company earned the patent rights on Basmati rice through the US Patent and Trademark office. This allowed the company to sell a 'new' variety of Basmati in the US and abroad. This 'new' variety of Basmati had been derived from the varieties of the Indian farmers. The Indian Basmati was crossed with semi-dwarf varieties and claimed as a novelty. The patent extends to functional equivalents, implying that the patent could restrict other people selling Basmati rice.