US Patent 8163345 - Multi-coating DPN®

http://www.freepatentsonline.com/8163345.html

This patent has priority going back to 1999 and includes some basic claims to processes of Dip Pen Nanolithography® pioneered by the company NanoInk. Claim 1 reads:


1. A method of nanolithography comprising:

providing a substrate;

providing a scanning probe microscope tip;

coating the tip with a patterning compound; and

contacting the coated tip with the substrate so that the compound is applied to the substrate so as to produce a desired pattern,

wherein a second compound is applied to the pattern.