Technology
Review has teamed with CHI Research
ofHaddon Heights, NJ,to produce the
Patent Scorecard,an industry-by-industry
ranking of corporate patent portfolios.CHI
com-bines the number of patents a firm
receives with other indicators to flesh
out this deeper picture of innovation.
Here are the specifies:TECHNOLOGICAL
STRENGTH: This figure, the basis of
the rankings, provides an over-all assessment
of a firm's intellectual-property power.
It is calculated by multiplying the
number of a company's U.S. patents by
its Current-Impact Index (see below).
NUMBER OF PATENTS: The total number
of U.S. patents awarded, excluding design
and other special-case inventions.
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CURRENT-IMPACT
INDEX:This measure showcases the broader
significance of a company's patents
by examining how often its U.S. patents
from the previous five years are cited
as "prior art" in the current
year's batch. A value of 1.0 represents
average citation frequency, so 1.4 would
indicate a company's patents were cited
40 percent more often than the average,
and so on.
SCIENCE LINKAGE: Patents sometimes cite
scientific papers as prior art.This
value shows the average number of science
references listed in a company's U.S.
patents.A high figure indicates the
company is closer to the cutting edge
than its competitors.
TECHNOLOGY CYCLETIME: An indicator of
a firm's speed in turning leading-edge
technology into intellectual property,
defined as the median age (in years)
of the U.S.patents cited as prior art
in the company's patents.
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產業智庫 
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