Figure 10.
Target families as identified in the patent titles. The bars are colored according to the priority claims year (one patent from 1900, covering caffeine, was undisplayed for clarity).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.