This paper uses patent citation data to study flows of knowledge across time and across institutions in the field of … of the accumulated knowledge available to inventors. Patent citations are used to represent this quality. This paper …

I use U.S. patent data from 1970 to 1994 to estimate the effect of energy prices on energy-efficient innovations. Using … patent citations to construct a measure of the usefulness of the existing base of scientific knowledge, I consider the effect …

motives to patent indicate that firms patent for reasons that often extend beyond directly profiting from a patented … motives for patenting include the prevention of rivals from patenting related inventions (i.e., patent blocking'), the use of … patents in negotiations and the prevention of suits. We find that firms commonly patent for different reasons in discrete …

of the developing world introduces patent protection for new drug products. This may lead to more research on drugs to … those already offering such protection the situation offers a unique opportunity to examine the incentive role of patent … provides a baseline' against which future research activity can be compared once the new global patent regime is fully …

patent histories and R&D expenditures, after controlling for other firm-specific variables including size and likelihood of …

the past 30 years, with the aid of highly detailed patent data. We use for that purpose all israeli patents taken in the …

briefly presented. Then the empirical literature that relates Tobin's q or the market to book value ratio to R&D and patent … value of the modern manufacturing corporation is strongly related to its knowledge assets, and that patent measures contain …

We estimate the effect of patent protection on follow-on investments in corporate scientific research. We exploit a new … method for identifying an exogenous reduction in the protection a granted patent provides. Using data on public, research …-active firms between 1990 and 2015, we find that firms decrease follow-on research after a reduction in patent protection, as …

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 …