presents estimates of the effect of patent protection on the depreciation rate. Results suggest that the yearly depreciation … averaging 8-9 per cent. Patent protection slows down the erosion of profits by about 1-2 percentage points …

trade in patent rights was closely associated with increases in specialization at invention, as well as advances in rates of … invention more generally. The patent system is often celebrated for the stimulus to invention provided by granting limited … technological knowledge. Relying on evidence compiled from patent records, we argue that the evolution of a market for technology …

This paper summarizes a number of studies which use patent data to examine different aspects of technological change … estimation of the value of patent rights based on European patent renewal data; and describes the use of patent data to estimate … the importance of R&D spillovers. It concludes that patent data represent a valuable resource for the analysis of …

This paper studies the effects of the USPTO's patent secrecy program in World War II, under which over 11,000 U ….S. patent applications were issued secrecy orders which halted examination and prohibited inventors from disclosing their … compulsory invention secrecy reduced follow-on invention and restricted commercialization, but as part of the security policies …

commercial activity related to invention are lower than once thought. This is despite relatively lower patent activity among …Previous studies have found large gender and racial differences in commercialization of invention. Using novel data …

agglomeration of US innovation. This study applies an ethnic-name database to individual US patent records to explore these trends …

patent. The discovery of the periodic table in 1869 offers an opportunity to test this idea. Exhibition data show that …

detailed data on inventors contained in patents, and harness it for economic research. Patent data has long been used in … "John Smith" problem). Given that there are over 2 million patents with 2 inventors per patent on average, the "who is who …-inventors, etc. Forty percent of them have more than one patent, and 70,000 have more than 10 patents. We can trace those multiple …