Patent portfolio management of sequential inventions: : Evidence from us patent renewal data

• Autores: Jinyoung Kim
• Localización: Review of Industrial Organization, ISSN-e 1573-7160, Vol. 47, Nº. 2, 2015, págs. 195-218
• Idioma: inglés
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• Resumen

  • This paper investigates a firm’s decisions regarding renewal and patenting of sequential inventions and tests the implications of a dynamic model of patent portfolio management where a firm makes the decisions taking into account complementarity and substitutability across sequential inventions. We use cross-price effects of renewal fees and filing fees on renewal and patenting decisions to identify complementarity or substitutability. We find that higher filing fees are associated with a lower probability of patent renewal, which supports the idea of complementarity across sequential inventions.