Showing 1 - 10 of 177
We study the determinants of patent suits and their outcomes over the period 1978- 1999 by linking detailed information from the U.S. patent office, the federal court system, and industry sources. The probability of being involved in a suit is heterogeneous, being much higher for valuable...
Persistent link: https://www.econbiz.de/10011071139
We analyse the determinants of the decline in measured research productivity (the patent/R&D ratio) using panel data on manufacturing firms in the U.S. for the period 1980-93. We focus on three factors: the level of demand, the quality of patents, and technological exhaustion. We first develop...
Persistent link: https://www.econbiz.de/10010746047
We study the determinants of patent suits and their outcomes over the period 1978-1999 by linking detailed information from the U.S. patent office, the federal court system, and industry sources. The probability of being involved in a suit is very heterogeneous, being much higher for valuable...
Persistent link: https://www.econbiz.de/10005778284
This paper investigates the characteristics of litigated patents by combining for the first time information about patent case filings from the U.S. district courts and detailed data from the U.S. Patents and Trademark Office. A series of indicators is constructed for the factors which the...
Persistent link: https://www.econbiz.de/10005310326
We study the determinants of patent suits and their outcomes over the period 1978-1999 by linking detailed information from the U.S. patent office, the federal court system, and industry sources. The probability of being involved in a suit is heterogeneous, being much higher for valuable patents...
Persistent link: https://www.econbiz.de/10005670769
We analyse the determinants of the decline in measured research productivity (the patent/R&D ratio)using panel data on manufacturing firms in the U.S. for the period 1980-93. We focus on three factors: the level of demand, the quality of patents, and technological exhaustion. We first develop an...
Persistent link: https://www.econbiz.de/10005670777
We analyse the determinants of the decline in research productivity using panel data on manufacturing firms in the US for the period 1980-93. We focus on three factors: the level of demand, the quality of patents and technological exhaustion. We develop an index of patent 'quality' using...
Persistent link: https://www.econbiz.de/10005392680
This paper studies how patent rights and price regulation affect how fast new drugs are launched in different countries, using newly constructed data on launches of 642 new drugs in 76 countries for the period 1983-2002, and information on the duration and content of patent and price control...
Persistent link: https://www.econbiz.de/10011126137
This paper studies how patent rights and price regulation affect how fast new drugs are launched in different countries, using newly constructed data on launches of 642 new drugs in 76 countries for the period 1983-2002, and information on the duration and content of patent and price control...
Persistent link: https://www.econbiz.de/10010945145
This paper studies how patent rights and price regulation affect how fast new drugs are launched in different countries, using newly constructed data on launches of 642 new drugs in 76 countries for the period 1983-2002, and information on the duration and content of patent and price control...
Persistent link: https://www.econbiz.de/10010950846