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tend to be very rapid in their pace of improvement on patented technology. At the

same time, U.S. companies dominate in terms of being granted U.S. patents with

the highest scientific merit, when merit is measured in terms of CI and NPR. This

means that U.S. companies dominate lists of firms noted for gaining patents that

are widely cited in subsequent patent applications and in academic journal arti-

cles and papers presented at scientific meetings. Interestingly, and despite Narin’s

(1995) suggestion that Japanese companies tend to be most rapid in their citation

of new technology, Hirschey and Richardson (2001) report that there is no clear

difference ...