1. The decision made by the Intellectual Property Tribunal on February 16, 2015 on a case No. 2014Da381 is revoked.

2. The costs of lawsuit shall be.

1. Basic facts

A. (1) On February 11, 2014, the Defendant: (a) against the Plaintiffs, the Intellectual Property Tribunal rendered an ordinary knowledge in the technical field to which the invention pertains (hereinafter “ordinary technician”); and (b) on February 11, 2014, the instant patented invention was ordinarily used.

(2) On February 16, 2015, the Intellectual Property Trial and Appeal Board rendered a trial ruling accepting the Defendant’s claim on the grounds that the nonobviousness of the instant patent invention is denied, on the grounds that the nonobviousness of the instant patent invention is denied.

나. 원고들의 이 사건 특허발명 1) 발명의 명칭 : C 2) 출원일/ 등록일/ 등록번호: D/ E/ F 3) 발명의 주요 내용 가) 기술분야 이 사건 특허발명은 2종의 냉매 냉매(冷媒): 냉동기(冷凍機)에 사용되고 냉동 작용을 하는 물질이다.

대표적인 냉매(冷媒)로서는 암모니아, 프레온(디클로로이플루오로메탄), 메틸클로라이드 등이 있다

(See Niber Knowledge Baba, mechanical engineering terms). It is about a producer's equipment to recover and treat ice as well as to collect and dispose of them.

(B) A device that can efficiently recover refrigerants has been installed in the past because the refrigerants in the background technology vehicle or domestic air conditioner or the air conditioner is an important environmental problem when discarding them. However, in the past, the refrigerants are each equipped with the first tank to cooling the refriger the refrigerants, so the device is large, and the unfrigerants are stored in the second tank (unfrigerified liquid) if the refrigerants are stored in the second tank (unfrigered gaseous coolant because of a large volume of the refrigerants, so it is problematic that the refrigerants can not be efficiently stored, and if the refrigerants are to be recovered in the two kinds of refrigerants, the first type of refrigerants are recovered.