US Patent 7342479 - CNT resistance sensor

http://www.freepatentsonline.com/7342479.html

This patent from Eikos includes some broad claims to a carbon nanotube resistance sensor. Claim 1 reads:

1. A chemically sensitive resistor comprising: a resistive region comprising carbon nanotubes; and a conducting electrode on a side of the resistive region, wherein the resistor measures a change in resistance of the carbon nanotubes from a known baseline resistance upon exposure to an analyte.

Too bad the examiner missed prior art such as US Patent 6,528,020.