Before revision: USGENE provides searchable access to all available peptide and nucleotide sequences from the published applications and issued patents of the United States Patent and Trademark Office (USPTO) .
After revision: A comparative study of patent sequence databases, Piet Jan Andre, et al., World Patent Information, Volume 30, Issue 4, December 2008, Pages 300-308USGENE provides searchable access to all available peptide and nucleotide sequences from the published applications and issued patents of the United States Patent and Trademark Office (USPTO) .