CPC分类在造纸制浆领域专利检索中的应用

Application of CPC classification in Patent Retrieval in Pulp and Paper Industry

与国际专利分类体系(IPC)相比,合作专利分类体系(CPC)具有更为细化、精准的分类特点,文献标引量适中,具有较好的降噪效果,有助于更加高效的检索。本文通过对比制浆领域CPC与IPC的分类情况,并结合实际检索案例对CPC的检索特点加以阐述。

Compared to International Patent Classification (IPC), Cooperative Patent Classification (CPC) has more detailed and accurate classification characteristics, and the index of the literature is moderate, which has better noise reduction effect and helps to search more efficiently. This paper compared the classification of CPC and IPC in the pulping field, and describes the search characteristics of CPC by the practical case.