Does Patent Quality Differ among Firms in Japanese Chemical Sectors?

Abstract

Patents and chemical industry complete each other. Most chemical companies around the world used patent as their protection for inventions and innovations. There are nodoubts of qualities of patents in the chemical industry, however, do all the chemical industry sector produce high quality patents? This study will identify the differences in patent qualityamong four chemical industry
sectors which are agricultural chemical (1), commodity chemical (2), diversified chemical (3), and specialty chemical (4). Thisstudy used forward patentcitation as a measurement of patent quality and analysed it by using Kruskal-Wallis test to see the similarities or differences between each sector. This research has found that there are no similarities in patent qualities in chemical industry sectors thus the quality of patent for each sector are different. Hence, in thisresearch great emphasis will be made on its globally in relation to aspect of patent management and different characteristics of each chemical industry sector.

Keyword:Patent quality, chemical industry sector, forwardpatent citation, Kruskal Wallis analysis