Given that the USA is the premier country globally for innovation, getting a US patent is an extremely difficult process as compared to other countries. The USA patent of QR678 paves the way to a potential market in the United States that caters to a vast population, one of the largest in the entire world! Needless to say, the US patent is hence the most respected patent, a feat that sets QR678 apart from others and adds to its gild.

Reference: https://www.uspto.gov/