FIGURE C.1 Number of U.S. patents in all classes awarded between 1980 and 2004 (up to October 21, 2004). The Euro5 data combine the data for the five West European countries, and the Asia5 data combine the data for the five Asian countries. The insert shows the data without the data from Japan, the United States, and the Euro5 and Asia5 groups. SOURCE: USPTO.

The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement