US Patent 7505102 - Carbon nanotrees

http://www.freepatentsonline.com/7504152.html

This patent from Rensselaer Polytechnic Institute teaches the fabrication of a new type of nanostructure based on carbon or a variety of other materials having a nanoscale tree shape. Claim 1 reads:

1. A particle comprising a base having a shape of an inverted truncated right circular cone, wherein diameter of the inverted truncated right circular cone ranges from 1 nm to 100 microns, height of the inverted truncated right circular cone ranges from 5 nm to 1000 microns, and aspect ratio of the inverted truncated right circular cone ranges from 5 to 5000.