In 1993, His Majesty the late King Bhumibol Adulyadej, Rama IX, became the world’s first sitting monarch to be granted a patent. This was granted for an aerator used in waterway treatment. The device, referred to as the Chaipattana Low Speed Aerator (Model RX-2) is a machine with a paddle wheel attached to a floating buoy that adds oxygen to water though the moving of the water … Continue reading Chaipattana Water Aerator — Thailand #1670 (1996)