Svfc patent, have they ever utilized this patent in any way? http://worldwide.espacenet.com/publicationDetails/originalDocument;jsessionid=9ZvCGh5jIbO8PKP7vJbzTIle.espacenet_levelx_prod_1?FT=D&date=20130514&DB=&locale=en_EP&CC=US&NR=8440440B2&KC=B2&ND=1