Purpose: The purpose of the paper is to advance a framework that can assess and analyze the value of patent portfolios. On this purpose, the framework develops a conceptual and comprehensive index, the patent portfolio value index (PPVI), to assess the patent innovation level and suggest...

Purpose – The purpose of this paper is to identify the recurrences in the empirical evidences that link open innovation (OI) actions and innovation performance in European countries. It provides managers with useful strategic suggestions, emphasizes the limitations of the state of the art, and...

Purpose Startup companies represent a powerful engine of open innovation (OI) processes. The purpose of this paper is to represent a first step in building a map of the state-of-the-art knowledge of the “startups in an OI context” phenomenon. Through the selection and analysis of relevant...