which German patent renewal fees were paid to full-term expiration in 1995. A search of subsequent U.S. and German patents … allowed to expire before their full term. The higher an invention's economic value estimate was, the more the relevant patent …

which German patent renewal fees were paid to full-term expiration in 1995. A search of subsequent U.S. and German patents … allowed to expire before their full term. The higher an invention's economic value estimate was, the more the relevant patent …

This paper analyses whether strategic motives for patenting influence the characteristics of companies' patent … survey and patent data from German companies. We find clear evidence that the companies' patenting strategies explain the … characteristics of their patent portfolios. First, companies using patents to protect their technological knowledge base receive a …

Foundation (NSF), patents issued by the United States Patent Office (USPTO) to U.S. academic institutions more than doubled from …

Despite the wide use of two-tiered patent systems (patents and utility models (UMs)), there is little empirical … benchmark for several second tier patent protection systems around the world …

academic patents using German professor patents linked to patent opposition data from the European Patent Office (EPO). Patent … patent value, asymmetric information and diverging expectations between the opposition parties, the likelihood of a … applied by owners of potentially rival technologies. -- academic inventors ; intellectual property rights ; patent oppositions …