ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,543,672, issued on Feb. 10, was assigned to SHERPA SPACE INC. (Daejeon, South Korea).
"Nutrient solution recycling plant cultivation system" was invented by Choa Mun Yun (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a nutrient solution recycling plant cultivation system, which recycles and supplies a cultivation nutrient solution and measures in real time the composition of each nutrient component to be added to a waste nutrient solution through a so-called soft sensor using measured values of pH, EC, temperature, turbidity, and weight and a previously constructed estimation model instead of an exp...