US Patent 7905992 - Submerged surface with conductive nanoparticles

http://www.freepatentsonline.com/7905992.html

This patent from Brunswick Corporation teaches that carbon nanotubes are useful as a coating of marine vessels to avoid growth of organisms on the vessels. Claim 1 reads:

1. An object having a surface that is submergible, comprising:

a support structure; and

a layer disposed on said support structure, said layer having a surface which is disposable in contact with water when said object is submerged, said layer comprising a binder and a plurality of electrically conductive nanoparticles suspended within said binder, wherein said plurality of electrically conductive nanoparticles comprises a plurality of carbon ferrules.