INVENTOR MOBILITY MAPS FOR THE UNITED STATES, 1975-2010

Submitted by dradmin on

Description: 

These movies illustrate the mobility of patented U.S. inventors, based on different addresses and their date of patent application. The arc appears in the year that the latter patent was applied for. Of note is the substantial increase in inventor migration to California over the observed years. Michigan's noncompete brain drain can also be seen, in the increased emigration following the 1985 passage of the Michigan Antitrust Reform Act. Later years appear light due to the lag between patent application and grant.
Visualizations done by Guan-Cheng Li.