[284-5] US Patent Holders, 2011

There are 34 countries that hold over 1,000 United States registered patents.  Each is shown here, it's text size relative to the amount of patents held.

[284-2] US Patent Holders, 2006

There are 34 countries that hold over 1,000 United States registered patents.  Each is shown here, it's text size relative to the amount of patents held.