Tuesday, April 17, 2007

US Patent 7204970 - 95% SWNT composition of matter


The late Richard Smalley was one of the pioneers in carbon nanotechnology and, although the basic single walled nanotube (SWNT) patent belongs to IBM, the patents produced by Smalley and others from Rice University cover many of the basic fabrication processes and stuctures of SWNTs. This patent (with priority going back at least to 1999) claims:

1. A composition of matter comprising single wall carbon nanotubes wherein at least 95% of said single wall carbon nanotubes have a diameter in the range of 0.6 nm to 0.8 nm.

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