4 ms·Your link also mentions that Google has a patent on this (patent no. 20070239716). Interesting.by eurleif 15y agoYour link also mentions that Google has a patent on this (patent no. 20070239716). Interesting.frisco 15y ago(That's a publication number, not a patent number. Notice that it starts with a year. Issued patent numbers are sequential.)eurleif 15y agoOops, you're right. The patent number is 7593939.