Robert Merges and Richard Nelson's 1990 article On the Complex Economics of Patent Scope focuses attention on patent … argue that such dynamic “drag” from patent rights can be especially problematic with respect to “cumulative technologies … substantially novel features. Broad patent scope can decelerate the development of such a technology by “reducing competition in the …

evidence about the policy-induced development of environmentally friendly technology. I use patent data from 1976 to 1997 for … patent over time in one country (such as changes in patenting laws and of course economic growth), I regard the ratio of … mere patent counts.1 I find that energy prices (as a demand-side factor that influences the value of new innovations) have …

on the effects of the patent stock on profitability. The data base is a representative sample of German manufacturing … patent stock has a strong and robust effect on profitability. …

empirical study on the determinants of innovative activity measured by patent applications are presented. A sample of German …

This paper presents an empirical analysis of the determinants of patent litigation in Germany, based on information … analysis show that relatively valuable patents are more likely to be involved in litigation cases than the average patent … than patents which have not been opposed. Patent owner?s ability to trade patents with potential infringers and to interact …