Graham, Stuart J.H.; Hegde, Deepak; Mowery, David C. - National Bureau of Economic Research (NBER) - 2007
), the Continuations-In-Part (CIP), and Divisions -- to alter the term and scope of patents. This paper analyzes patents … their frequency to the characteristics of patents, assignees and industries. We find that CIPs are disproportionately filed … by R&D-intensive, small firms that patent heavily, and are more common in chemical and biological technologies. Patents …