http://www.freepatentsonline.com/7419601.html
This patent from Seldon Technologies (priority March 7, 2003) includes some basic claims to an article using carbon nanotubes to form a mesh structure usable as a fluid purification filter. Claim 1 reads:
1. An article for removing contaminants from a fluid, said article comprising carbon nanotubes, at least one of which comprises at least one molecule or cluster attached thereto or located therein, wherein the carbon nanotubes are present in the article in an amount sufficient to reduce the concentration of contaminants in fluid that comes into contact with the article and are in the form of an assembled nanomesh in which the carbon nanotubes are connected or attached to other carbon nanotubes, to fibers, to particles, or any combination thereof.
