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案情工程师张某,在停薪留职期间,自行研制了一种新型炼钢用的“金属陶瓷吹氧管”。该产品比普通金属吹氧管具有耐高温、抗氧化、强度高,以及使用寿命长等优点。1985年9月25日,张某就该项产品提出专利申请。1986年7月30日国家专利局发出公告,公开了该项专利申请。 1987年6月1日,张某与某钢城企业公司第二金属制品厂(以下简称金属制品厂)签订了一份专利生产权转让协议。协议约定:金属制品厂购买张的“金属陶瓷吹氧
Case engineer Zhang, during the leave without pay, has developed a new type of steel used in “metal lance.” The product than ordinary metal lance with high temperature, anti-oxidation, high strength, and long life and other advantages. September 25, 1985, Zhang made a patent application for the product. On July 30, 1986, the State Patent Office issued a public announcement of the patent application. June 1, 1987, Zhang and a steel company Second Metal Products Factory (hereinafter referred to as metal products factory) signed a patent transfer of production rights agreement. Agreement: Metal Products Factory to buy Zhang's "metal-ceramic blowing oxygen