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.
 |
This story is only available to subscribers.
Don’t settle for half the story.
Get paywall-free access to technology news for the here and now.
