해당 기간 출원된 기술을 살펴보면 수온, pH, 용존산소, 수량 등 수질관리 시스템 관련 출원이 119건(45%)으로 가장 많았다.
Among the technology that was filed during the period, the highest proportion was 119 cases (45%), which were related to the water quality management system, such as water temperature, pH, dissolved oxygen, and quantity.