Patents
Many of the most commercially active technology fields today, as measured by patent activity, were barely on the map a decade ago. Here's a look at the top 10 technology classes to which the U.S. Patent and Trademark Office assigned new inventions in 2001, with a comparison to activity in these same areas in 1991.
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Manufacturing in the United States is in trouble. That's bad news not just for the country's economy but for the future of innovation.
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