. . . "For a discussion regarding defensive publications, see B. Barrett, ???Defensive use of publications in an intellectual property strategy,??? available at http://www.nature. com/bioent/2003/030101/full/nbt0202-191.html and the article ???What is a Defensive Publication,??? available at http://defensivepublications.org/(last visited Oct. 31, 2011). 2 There are many IP cost estimator programs availab" .