US Patent 7906043 - Electrically conductive optically transparent CNT composites

http://www.freepatentsonline.com/7906043.html

This patent from NASA has priority going back to 2001 and includes some basic claims for producing nanotube composites used as transparent electrodes. Claim 1 reads:

1. A method for producing a polymer/carbon nanotube nanocomposite containing a dispersion of nanotubes in a continuous polymer matrix, comprising synthesis of a polymer in the presence of pre-dispersed non-functionalized nanotubes with simultaneous sonication throughout the synthesis.