Add copyright notice in IEEE Latex conference class

http://www.stabeler.com/blog/541/

Add the following two commands before \maketitle

\IEEEoverridecommandlockouts
\IEEEpubid{\makebox[\columnwidth]{978-1-4799-3360-0/14/\$31.00~\copyright~2014 IEEE \hfill} \hspace{\columnsep}\makebox[\columnwidth]{ }}

Use the \IEEEpubidadjcol command somewhere in your second column text, which makes the relevant adjustments for the text. (didn't use in my paper, it seems to be okay without this command).