封闭式权利要求的保护范围--山西振东泰盛制药有限公司等与胡小泉侵犯发明专利权纠纷再审案

The Protection Scope of a Closed Claim

专利保护范围是由权利要求界定的。在化学领域的专利保护中,权利要求的撰写方式有开放式和封闭式。然而,封闭式权利要求是否可以包括其他的成分,以及可以包括什么样的成分,却不是一个很清楚的问题。在"泰盛制药诉胡小泉"一案中,最高人民法院裁定,关于封闭式权利要求,除了构成发明的化学组成成分,还可以包括以通常含量存在的杂质。与胡小泉的封闭式权利要求相比对,泰盛制药的药品中多了一种"精氨酸"的成分,但不是以通常含量存在的杂质。与此相应,泰盛制药没有侵犯胡小泉的专利。最高人民法院关于封闭式权利要求可以包括以通常含量存在的杂质的判决,对于理解化学领域中的封闭式权利要求具有指导性意义。

The protection scope of a patent is defined by its claims.In the chemical fields,there are two types of claims,i.e.claims in open,and claims in close.For the claims in close,it is a question unclear whether the claims shall include other chemical elements,or what kind of chemical elements can be included.In"Taisheng v.HU Xiaoquan",the Supreme Court of China decided that in a claims in close,in addition to the composition of chemical elements claimed,it could include some impurity substances normally existed.However,in addition to the claimed elements by HU Xiaoquan,there is a chemical element amino acid in the accused medicine by Taisheng,and the amino acid is not an impurity substance normally existed.So Taisheng does not infringe HU Xiaoquan's patent.The decision by the Supreme Court of China concerning the patent claims in close in chemical fi elds is important for the understanding of the claims in close in chemical fi elds.