英语翻译The first version of the PageRank technology was created

英语翻译The first version of the PageRank technology was created while Larry and Sergey attended Stanford University,which owns a patent to PageRank.The PageRank patent expires in 2017.We hold a perpetual license to this patent.In October 2003,we extended our exclusivity period to this patent through 2011,at which point our license is non-exclusive.谁能帮我翻译下这段内容,里面涉及到一些专利问题,麻烦英语达人帮忙翻一下,有些急.