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