Technology evolution in the global automotive industry: a patent-based analysis

This study explores the evolution of the knowledge base of the automotive industry. Over the last decades, the knowledge base of this industry has experienced major changes. New and originally unrelated fields have increasingly become relevant in the industry. Using data on utility patent families granted in the period 1990-2014, we map the knowledge base of the automotive industry by reconstructing and analyzing the innovative portfolio of the top firms operating in this industry. The analysis documents exploration in new technical fields as well as persistence in industry-specific technical areas, pointing to the relevance of core competences that might be difficult to accumulate for industry outsiders