Simultaneously, His Majesty the King designed an invention to help improve the water quality in various water sources. His Majesty used the local method of the villagers called "water wheel” as a model to invent an aerator which is simple yet highly efficient in treating waste water with satisfactory results. The invention is well known under the name "Chaipattana Aerator". His Majesty graciously consented for the Chaipattana Aerator to be patented under his name, and the patent was issued on February 2, 1993. It is the world's ninth aerator to be patented. The registration for the patent stemmed from His Majesty's intention for it to serve as a role model for Thai people to realize the importance of intellectual property registration and ways of utilizing our intellect for beneficial purposes.