Patent citations are extensively used as a measure of patent quality. How­ever, counting citations does not account for the fast that citations corne from patents of different qualities, and that some citations are of a higher quality than other citations. We propose and develop a citation...

Patent citations are extensively used as a measure of patent quality. However, counting citations does not account for the fact that citations come from patents of different qualities, and that citations are of variable qualities. We develop a citation index which takes into account the...