2011-09-18 President Obama Signs America Invents Act, Overhauling the Patent System to Stimulate Economic Growth, and Announces New Steps to Help Entrepreneurs Create Jobs / The white page blog http://www.whitehouse.gov/the-press-office/2011/09/16/president-obama-signs-america-invents-act-overhauling-patent-system-stimhttp://www.whitehouse.gov/photos-and-video/video/2011/09/16/president-obama-signs-america-invents-act