• 1 Introduction
  • 2 The PatVal-EU survey
  • 3 Who are the European inventors?
  • 4 Collaborations, spillovers and sources of knowledge
  • 4.1 Sources of knowledge spillovers
  • 4.2 The role of collaborations in the production of innovations
  • 4.3 Geographical proximity an exchange of knowledge among inventors
  • 4.4 Sources of knowledge in the invention process
  • 5 The use and value of EPO patents
  • 5.1 The use of patents
  • 5.2 Entrepreneurship and patents
  • 5.3 The economic value of patents.
  • 6 Conclusions
  • Appendix
  • References