Index of /ref/patents

      Name                    Last modified      Size  Description
Parent Directory - US6490349.pdf 2006-03-02 05:15 1.4M US6678270.pdf 2006-03-02 05:15 576K US6744864.pdf 2004-06-02 04:37 876K US6993661.pdf 2006-03-02 05:15 659K US7023854.pdf 2007-02-25 13:19 574K US7779032.pdf 2010-08-31 17:40 1.9M